Integrating Free Download Manager

[Blacklab]

INTRODUCTION

This tutorial describes two methods of fully integrating Free Download Manager(FDM) into Pale Moon and gathers all the information, in an approachable form, in one place. Most of the information was extracted from Community Support Topic: [Workaround] FreeDownloadManager 3.9 with Pale Moon. The step-by-step instructions are aimed at the interested, but non-expert, Pale Moon user.

A major drawback of using Integrator Add-on's such as FlashGot (https://addons.mozilla.org/en-US/firefox/addon/flashgot/) or xThunder (https://addons.mozilla.org/enUS/firefox/addon/xthunder) is that they cannot achieve the full integration with Pale Moon that FDM is designed to offer. In particular FDM's built-in monitoring feature, which should automatically "pick up" downloads selected in the browser, does not work.

FDM includes support for Firefox but unfortunately when Pale Moon users attempt to enable FDM's built-in "Firefox Monitoring" option found in (FDM>Settings>Downloads>Monitoring>tick "Firefox" box>OK) this fails with an Error Pop-up "Can't Install Firefox Monitoring". This is because Pale Moon's profile path is, by necessity, different from the path used by Firefox. Ideally the FDM developers will include Pale Moon's Profile Path in future updates but until then there are these two options:

Note: A new version of the FDM installer package, FDM 3.9.3 (build 1360, full or lite versions, released 25 Oct 13), is now available on FDM's official download page. This has the latest FDM Plugin version 1.6.0 onboard which is compatible with PM 24 (and FF 24-26).


WITH FIREFOX INTEGRATION METHOD

This method is for Pale Moon users who also have Firefox installed.

General Notes applicable to all instructions:
- Free Download Manager is abbreviated to FDM.
- When differences arise between Windows OS versions: Windows 7 example shown first (followed by XP example in brackets, if needed for clarity.)
- The Environment Variable shortcut %APPDATA% is used throughout as a quick way to navigate to the Windows App Data (Application Data) folder. This shortcut has two other advantages, i) by using %APPDATA% the same step-by-step instructions apply to all current Windows OS (XP/Vista/7 and probably 8?) and also, ii) using %APPDATA% opens the "hidden folder" App Data (Application Data) without requiring "Show hidden files and Folders" to be enabled.

First confirm that FDM is fully integrated into Firefox by checking: FDM>Settings>Downloads>Monitoring - are both "Firefox" and "Add FDM to the browser context menu" boxes ticked? In Firefox>Add-on's Manager>Extensions is "FDM plugin 1.6.0" installed and enabled? If correct proceed as below:

1) Copy 'fdm_ffext@freedownloadmanager.org' file from Firefox:
Start>Run>Type: %APPDATA% into Run dialog box>OK - App Data(Application Data) folder opens.
Navigate to your Firefox Profiles folder at: Mozilla\Firefox\Profiles\xxxxxxxx.default
Open "extensions" folder and copy 'fdm_ffext@freedownloadmanager.org' file. Close folder.

2) Add 'fdm_ffext@freedownloadmanager.org' file to Pale Moon:
Start>Run>%APPDATA%>OK - App Data(Application Data) folder opens again.
Navigate to your Pale Moon Profiles folder at: Moonchild Productions\Pale Moon\Profiles\xxxxxxxx.default
Open "extensions" folder and paste in 'fdm_ffext@freedownloadmanager.org' file. Close folder.

3) Install the FDM Plug-in into Pale Moon:
Start Pale Moon and "Install Add-on" Tab opens requesting permission to install FDM plugin 1.6.0
Tick "Allow Installation" box, Click "Continue" button then "Restart Pale Moon" button - FDM plugin installs and requires Pale Moon restart .
Confirm that FDM plugin 1.6.0 is installed and enabled. (Pale Moon Button >Add-ons>Add-ons Manager>Extensions)

If you uninstall Firefox and your Firefox Profile the FDM integration into Pale Moon will fail. To resume integration you must either reinstall Firefox, thus creating a new FF Profile, or create a "fake" Firefox Profile as described in the Stand-alone Method below:


STAND-ALONE INTEGRATION METHOD

This method is for Pale Moon users who do not have Firefox installed.

Additional Notes for Stand-Alone integration method:
- As a Mozilla based browser Pale Moon automatically creates "Mozilla\Extensions" folders in the App Data (Application Data) folder. If deleted both folders are recreated at next Pale Moon launch.
- Ensure "Show full path in the Address Bar" is available.

1) Create a new "profiles.ini" file:
On desktop create a new Text Document (Right click>New>Text Document) and name it "profiles.ini"
Open "profiles.ini" and type or copy/paste in the following two lines exactly:

Code: Select all

[Profile0]
Path=FULL PATH OF YOUR PALE MOON PROFILE HERE

2) Copy the full path of your Pale Moon Profile:
Start>Run>Type: %APPDATA% into Run dialog box>OK - App Data(Application Data) folder opens.
Navigate to your Pale Moon Profiles folder at: Moonchild Productions\Pale Moon\Profiles\xxxxxxxx.default
Open your Pale Moon Profile file "xxxxxxxx.default" and then copy it's full path from the address bar. Close file.

EXAMPLE - Full path of my Pale Moon Profile is:
Win 7 C:\Users\<user name>\AppData\Roaming\Moonchild Productions\Pale Moon\Profiles\5fqbbg77.default
(If XP C:\Documents and Settings\<user name>\Application Data\Moonchild Productions\Pale Moon\Profiles\5fgbbg77.default)

3) Insert the full path of your Pale Moon Profile into new "profiles.ini" file:
Return to Desktop, Open the "profiles.ini" file and paste in your full path as copied from the address bar to replace FULL PATH OF YOUR PALE MOON PROFILE HERE. (Caution! DO NOT OMIT the Path= term in front of your full path!) Save and Close "profiles.ini" file, leave on desktop.

EXAMPLE - My Windows 7 "profiles.ini" file now looked like this:
[Profile0]
Path=C:\Users\<user name>\AppData\Roaming\Moonchild Productions\Pale Moon\Profiles\5fqbbg77.default

4) Now create "fake" Firefox Profile:
Start>Run>%APPDATA%>OK - App Data(Application Data) folder opens again.
Open "Mozilla" folder and inside create a new folder (Right Click>New>Folder) and name it "Firefox"
Open new "Firefox" folder and copy/paste in the new "profiles.ini" file saved on your desktop. Close folder.

EXAMPLE - Location of my "fake" Firefox Profile file is:
Win 7 C:\Users\<user name>\AppData\Roaming\Mozilla\Firefox\Profiles.ini
(If XP C:\Documents and Settings\<user name>\Application Data\Mozilla\Firefox\Profiles.ini)

5) Install the FDM Plug-in into Pale Moon:
Start FDM and navigate to FDM>Settings>Downloads>Monitoring - tick the "Firefox" box. Check "Add FDM to the browser context menu" box is also ticked (FDM default setting) and adjust menu items via "Customize" button if required. Click "OK" button to return to main FDM window - without FDM's error pop-up message now your "fake" Firefox profile has been created. Close FDM. (or leave running as you prefer!)
Start Pale Moon and "Install Add-on" Tab opens requesting permission to install Free Download Manager plugin 1.6.0
Tick "Allow Installation" box, Click "Continue" button then "Restart Pale Moon" button - FDM plugin installs and requires PM restart.
Confirm that FDM plugin 1.6.0 is installed and enabled. (Pale Moon Button>Add-ons>Add-ons Manager>Extensions)


USING FDM FULLY INTEGRATED INTO PALE MOON

Left click on a download button or link and the FDM "Add download" box will open first. To use Pale Moon's built-in download utility simply cancel the FDM "Add download" box. (Confirm FDM setting at: FDM>Settings>Downloads>Monitoring> is "allow the browser to download if you press Cancel" ticked?)
FDM monitoring will "pick-up" all downloads selected with left click. With podcast type (right click and "Save target /link As") use the "Download with FDM" right click menu option. (HINT: Try ignoring right click instruction - just left click anyway and the FDM "Add download" box will often open as usual!)


ADDITIONAL INFORMATION

Originally tested using 32-bit Pale Moon 12.3, Firefox 14. 0 and FDM 3.9 "lite" however the methods described are general, robust, and do not depend on specific software versions. EDIT: Checked November 2013 using 32-bit Pale Moon 24.2.0, Firefox 25.0.1 and FDM 3.9.3/FDM 3.9.3 "lite" (both build 1360).

64-bit Pale Moon users please note that FDM and it's plugins are 32-bit apps - see 12 July 2012 post by FDM Forum Moderator on FDM General topic Pale Moon 9 Support ? at: http://www.freedownloadmanager.org/board/viewtopic.php?f=1&t=15878

Your Pale Moon Profile is always available via: Pale Moon Button>Help>Troubleshooting Information - find "Profile Directory" and click "Show Folder" Button.


AND FINALLY.....

Many thanks to: steviem1, jaycelou & Moonchild for their help, suggestions and interest on original PM Community Support forum topic: [Workaround]FreeDownloadManager 3.9 with Pale Moon (http://forum.palemoon.org/viewtopic.php?f=3&t=900)
Special thanks to: Wyk (who posted "With Firefox Method") and happy user (who posted "Stand-alone Method") on FDM General forum topic: FDM Integration into Pale Moon (http://www.freedownloadmanager.org/board/viewtopic.php?f=1&t=16071).

If your inner geek enjoyed using the %APPDATA% Environment Variable shortcut....... there is another class of Windows OS shortcuts that use the Shell Command List. EXAMPLE for Windows 7 users: Windows Key>Type: shell:appdata into Start Search box>Enter. This also works in Run dialog box and Address bar. (So Shell Commands are available in XP too!)

[steviem1]

Nice to see such a well presented/constructed tutorial on this forum Blacklab which I'm sure will appeal to the more adventurous out there and by the way, thanks for the credits to all involved in the relentless persuit of integrating FDM into Pale Moon, a nice touch.

[jumba]

My addition to the subject

The profiles.ini file includes all the profile paths and FDM will install its plugin to all the profile locations in the firefox profiles.ini. If it can't install its plugin (means that you don't have the correct firefox profiles.ini file) it will not allow to enable the "Firefox monitoring". Thus it will not start to monitor PM downloads if Firefox is not installed even if the plugin is placed to the PM's profile and it is enabled in the addons manager.

My slightly different workarounds independent of Firefox installation and which also works for multiple profiles that in sort will "merge" the two profiles.ini files together

A. If you also use firefox besides PM
Copy your palemoon profiles info from its profiles.ini file and paste them to the firefox profiles.ini file as last. Change the profile numbering to correct from [Profile0] to [Profile1] and so on. And of course change the PM profile paths to full paths instead of the relative paths! If you want to use your PM profiles from firefox change the "IsRelative=1" to "IsRelative=0" on each PM profile in the Firefox profiles.ini file.

B. If you use PM only
Copy the PM's profiles.ini file to "%appadata%\Mozilla\Firefox", create the folder if not exist. And again change the profile locations to full paths and also disable the IsRelative if you want to use the profiles from firefox in the future.

After A or B enable the Firefox Monitoring from FDM's options. This will install the browser plugin to PM's profiles and FDM will start to monitor PM downloads if done as described above.

Might be too techy approach but I hope that it broadens the aspect of the PM integration.

OT. Seems incredible hard to simply add PM's profile path to the supported browsers for the majority of the developers. I bet we will not see support for PM in FDM in near future if ever..

[steviem1]

For those of you who are happy to use 'batch files' and would like to try FDM, there is now a one click option to integrate FDM into Pale Moon:

Please download the batch file from this link. http://ge.tt/api/1/files/8F8hOuM/0/blob?download
{Sic: edited the URL to be a valid revision of the batch file for Pale Moon 15.0, and dropped it on a faster service}

Special thanks to happy user who kindly supplied this link on FDM General forum topic: FDM Integration into Pale Moon (http://www.freedownloadmanager.org/boar ... =1&t=16071).

Also, thanks and credit for jumba's contribution above, which gives other options you might like to try.

We hope in the not too distant future the FDM developers will realise the status of the 'Pale Moon' browser in the internet community and provide auto - integration for PM, we're on their case.

[Blacklab]

The current Free Download Manager plugin version 1.5.7.4 loads into the Pale Moon 15.0 Add-ons Manager but is Disabled and marked as "incompatible with Pale Moon 15.0" - the plugin itself is only rated as being compatible with Firefox 9-14 so perhaps this should not be a surprise. (Note: In this case FDM plugin does not "request permission to install" as detailed in main tutorial but open Add-ons Manager>Extensions and plugin will be there, disabled/greyed-out.)

The current stable release version of Firefox has been 14.0.1 for a while now so hopefully the FDM Developers will release a beta version of the plugin offering Firefox 15+ compatibility soon.

An interim fix may be possible if this is only a matter of changing the FDM plugin's install.rdf file containing the maxVersion compatibility number?.... http://kb.mozillazine.org/Editing_an_ad ... patibility ...... may be worth investigation?

[jumba]

There are two options:

1. Use this addon https://addons.mozilla.org/en-US/firefo ... patibility (disables compatibility checks, thus any incompatible addon can be installed and enabled)
2. Increase the maxVersion number to 15 in install.rdf file which is located in C:\Program Files\Free Download Manager\Firefox\extension

This part is for the firefox by default:

Code: Select all

        <em:targetApplication> <!-- Firefox -->
            <Description>
                <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
                <em:minVersion>1.5</em:minVersion>
                <em:maxVersion>14.*.*</em:maxVersion>
            </Description>
        </em:targetApplication>

Change the maxVersion to 15 as below:

Code: Select all

        <em:targetApplication> <!-- Firefox -->
            <Description>
                <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
                <em:minVersion>1.5</em:minVersion>
                <em:maxVersion>15.*.*</em:maxVersion>
            </Description>
        </em:targetApplication>

And re-install the addon, by removing it first and re-enabling firefox monitoring.

I prefer the first one (which also works, didn't test the second option) as I have many other addons that are only incompatible by the lack of support for the higher version number..

[Blacklab]

Thanks jumba - just successfully got FDM up and running "fully integrated" with PM 15.0 using your second option which is really very simple to do. As you suggested all that is required is to navigate to C:\Program Files\Free Download Manager\Firefox\extension and open "install.rdf" file, then simply change the "maxVersion" line (which is coincidentally the 14th line of code) from 14.*.* to 15.*.* so full line then reads as follows:

Code: Select all

<em:maxVersion>15.*.*</em:maxVersion>

As I had done clean install of PM 15.0 and had repeated "Stand-alone Installation" method as described in original tutorial above I already had FDM plugin 1.5.7.4 in PM Add-ons Manager but disabled, greyed-out and marked as "not compatible." Restarted Pale Moon - went back into Add-ons Manager and FDM Plugin no longer showing as "incompatible" so just "enabled" (which then requires another PM restart) and FDM back in business! I expect removing plugin, re-enabling "Firefox monitoring" and then allowing normal reinstall of FDM Plugin method you suggest would have worked equally well.

Thanks also for suggesting Disable Add-on Compatibility Checks 1.3 Add-on which I shall try out on another "maxVersion" problem tomorrow!

[steviem1]

@jumba, Thankyou, both of your methods of getting FDM to work in PM 15 work fine. http://forum.palemoon.org/viewtopic.php ... 1070#p7186

I would like to add a few comments:

First option: Using this addon 'Disable Add-on Compatibility Checks 1.3'. With the rapid release schedule Mozilla has instigated for Firefox, and the inability for addon developers to update in line with this, maxVersioning has become a real problem to an otherwise fully functioning add-on (FDM developnent consistently seem to fall short in this respect), this particular addon effectively removes those maxVersion issues and allows their continued use.

Second option: By editing the maxVersion number in the 'install rdf' file - Tip: In order that you don't constantly need to go in and change this after every new browser release, this can be any number equal to or higher than your browser version number. Another way to accomplish this is to place this ' * ' next to the maxVersion instead of a number, the add-on's compatibility then won't be restricted by the maximum number.

I hope this additional information is useful to you all.

[steviem1]

Regarding the topic in this thread, concerning FDM integration using a one-click option. There is with the advent of PM 15 a problem with FDM maxVersion number as covered in recent posts. Unless the maxVersion number is changed, it is extremely unlikely the one-click option using the batch file will now work, so please follow the instructions in the previous post to increase the maxVersion number first.

Edit: There is now a new link to the updated Batch File which should work with PM 15. http://forum.palemoon.org/viewtopic.php ... 1070#p5962

Link to Integrating FDM Tutorial/Howto at the head of this thread. http://forum.palemoon.org/viewtopic.php ... 7215#p5896

[steviem1]

@Moonchild: I have an updated link here to download an updated batch file for the FDM one-click integration method, which I would prefer to substitute into the relevent post on this thread if at all possible. http://www.mediafire.com/?pxkr2nld07fkl02
(just the link no other text)?

Relevent post: http://forum.palemoon.org/posting.php?m ... 070#pr5962

Edit: Link now added to relevent post. Thanks MC for that.

[Moonchild]

Batch file link updated - also put it on my main file hosting service for speed's sake (and no ads).

[Blacklab]

FDM made this rather "low key" announcement on their forum 10 days ago and even their Homepage "Latest News" column has yet to mention anything. Most Pale Moon users will probably have FDM 3.9 with Plugin version 1.5.7.4 installed and as this setup does NOT appear to update automatically FDM's "Good news!" will be easily missed!
[quote="On 05 Sep 2012 FDM's "vaneo""]

Free Download Manager Firefox plugin

Hi, Good news!

There is no need to edit install.rdf file each time when Mozilla releases its new version of Firefox browser or wait for new FDM Release. Seems problems with firefox plugin are gone - our extension is fully reviewed by Mozilla team

Actually Firefox browser will update it automatically but for those users who have not been auto updated, plugin is available at: https://addons.mozilla.org/ru/firefox/a ... er-plugin/

P.s You can adjust plugin auto updating at Firefox->Add-ons->Extensions->Free Download Manager plugin Settings
__________________
FDM development team[/quote]
Obviously this is excellent news for Pale Moon users too! These additional notes and explanations may be helpful:

1. FDM's original link above is to a Russian language Firefox Add-ons page. There is now an English language Firefox Add-on page: https://addons.mozilla.org/en-US/firefo ... er-plugin/ and Softpedia has the new FDM Plugin 1.5.7.5 too.

2. If you are running the current stable release of FDM 3.9 or FDM 3.9 Lite (both are "build 1249") you will have FDM Plugin version 1.5.7.4 currently installed in Add-ons Manager/Extensions. Experience suggests FDM Plugin version 1.5.7.4 DOES NOT AUTOMATICALLY UPDATE in Pale Moon (or Firefox) so you will need to update manually using FDM's link (or Softpedia) to obtain the new FDM Plugin version 1.5.7.5 which is compatible with PM and FF 15.
NOTE: The new plugin's "install.rdf" file's "maxVersion" number is set to 15.* although oddly FDM have stated in forum answers that build 1249 is already compatible with FF 16?

3. If you are using one of the more recent FDM BETA versions (latest FDM build available from "Download 3.9.1 BETA" heading & link here if interested) you should find that your FDM Plugin has already AUTOMATICALLY UPDATED to a slightly different new Plugin version 1.5.7.6 - NOT the same as new plugin version 1.5.7.5 on Firefox Add-on page/Softpedia above.
NOTE: If you have updated to the latest FDM 3.9.1 BETA build 1268 (released 03 Sep 2012) the plugin's "maxVersion" number will be set to 20.*.*

Hopefully from now on both of these new FDM Plugin versions will update automatically?

[Blacklab]

Hopefully from now on both of these new FDM Plugin versions will update automatically?

Apologies! I spoke too soon! With the move to Firefox 17.0 as the current Firefox stable release last week the FDM plugin situation has gone "pear shaped" again and it looks as if Mozilla Addons have "pulled" the FDM Plugin which is being blamed for crashing Firefox 17.0? See this post and links on FDM forum's "Firefox Plugin" thread: http://www.freedownloadmanager.org/boar ... 172#p36148 and several following posts!

BRIEF SUMMARY OF SITUATION

If you now download FDM 3.9/FDM 3.9 Lite (both Build 1249 and current "stable release" of FDM) available on FDM Homepage and try to install in Firefox and/or Pale Moon.... the FDM plugin does not automatically install. If you follow a link to the FDM Plugin Addons page it now shows FDM Plugin 1.5.6 which is way out-of-date and marked as "Not available" and "greyed out" for both PM 15.3 and FF 17.0 so it will not install anyway.

If FDM 3.9/Plugin 1.5.7.5 is your current setup (with or without Firefox) and it is working normally in Pale Moon 15.3 (and not crashing Firefox 17.0 as it wasn't with me) then you can just carry on as you are. (Note: If you want FDM Plugin 1.5.7.5 it is still available from Softpedia links in post above.)

If you are trying to install, reinstall or update your FDM setup then the simplest and easiest thing to do is to download the latest FDM 3.9.1 Beta (Build 1268 released 03 Sep 12) from "FDM 3.9.1 BETA" forum page: http://www.freedownloadmanager.org/boar ... 85800fed3a (just click the "Download 3.9.1 BETA" line 7 in Alex's post at top of thread.) This is quite stable (I have run since release with no problems) and once downloaded installs normally into FF 17.0 and/or PM 15.3 (using either "Standalone" or "With Firefox" method) and automatically installs latest FDM Plugin 1.5.7.6 as described in original Tutorial.

[Blacklab]

Mozilla has recently cleared the latest FDM Plugin 1.5.7.6 and it is once again available direct from main AMO Addons page: https://addons.mozilla.org/en-us/firefo ... er-plugin/ and via built-in Add-ons Manager update button.

Anyone running FDM 3.9/3.9 Lite (both build 1249) with Plugin 1.5.7.5 should immediately update to Plugin 1.5.7.6 (select "Check for Updates" option under Gearwheel symbol in Pale Moon Add-ons Manager). The old Plugin was obviously causing Pale Moon 15 to crash as well as Firefox 17, see report in this topic: http://forum.palemoon.org/viewtopic.php ... 775#p10353

Anyone installing, reinstalling or updating FDM itself will still find that the most straightforward option is to download the latest FDM 3.9.1 Beta (build 1268) via link in post above. This will install the latest Plugin 1.5.7.6 automatically.

[Blacklab]

It must be Christmas! A new stable release, FDM 3.9.2 (build 1281), became available on Boxing Day!

For all old FDM design fans, we've just released the new 3.9.2 version which can be downloaded from our official download page. You can install and try our new FDM 5.0 version without uninstalling the old one.

The FDM 3.9.2/3.9.2 Lite installers comes with a new Plugin 1.5.7.7 onboard and this installs into Pale Moon, using either the "with Firefox" or "Standalone" method, just as described in the original Tutorial post.

PS. Any brave soul with comments/problems Re: FDM 5.0 Alfa please start a new topic so as not to confuse this one!

[Blacklab]

FDM PLUGIN COMPATIBILITY WITH PALE MOON 20.0.1

Note: If integrating FDM with Pale Moon for the first time, or if doing a full uninstall/fresh re-install of FDM, please follow the original Tutorial.

Pale Moon 20.0.1 will flag older FDM Plugins as "incompatible" during the Add-ons Compatibility check run at the end of the update sequence. The latest, compatible, FDM Plugin 1.5.7.9 is only available from "onboard" the two most recent FDM 3.9.2 programme installer packages. At present it is no longer possible to obtain new FDM Plugin updates separately from Mozilla Add-ons (AMO), Softpedia, or elsewhere - any versions still available are out-of-date.

CHECK INSTALLED FDM VERSION

1. Check installed FDM version: See "About FDM" version and build information via FDM "Help" or "?" toolbar button. Is the latest FDM 3.9.2 (build 1303) released 27 Mar installed? (Note: If you have FDM 3.9.2 (build 1301) released 11 Mar this also has FDM Plugin 1.5.7.9 onboard and thus will work equally well with instructions below.)
2. Download latest FDM version?: If required, download FDM 3.9.2 or 3.9.2 Lite (both build 1303) from FDM's official download page - then simply install "over the top" (OTT) of your present FDM installation. (OTT method: Ensure FDM is shut down - then click on new FDM 3.9.2 .exe installer package - update/installation sequence launches - clean-up "housekeeping" is included to remove out-of-date FDM components.)

UPDATE FDM PLUGIN IN PALE MOON - WITH FIREFOX SET-UP

1. Confirm new FDM Plugin installed in Firefox: The automatic and "notified" manual update settings in FDM itself, or the OTT method above, will all update the FDM Plugin in Firefox (but not in Pale Moon). In FDM "Firefox" Monitoring should stay selected and in Firefox's Add-ons Manager the updated FDM Plugin should stay enabled.
2. Remove old FDM Plugin from Pale Moon: In Pale Moon's Add-ons Manager locate the old FDM Plugin, click the "Remove" button and then exit Pale Moon.
3. Copy new 'fdm_ffext@freedownloadmanager.org' file from Firefox: Start > Run > Type: %APPDATA% into Run dialog box > OK - App Data(Application Data) folder opens. Navigate to your Firefox Profiles folder at: Mozilla\Firefox\Profiles\xxxxxxxx.default Open "extensions" folder and copy 'fdm_ffext@freedownloadmanager.org' file. Close folder.
4. Add new copy of 'fdm_ffext@freedownloadmanager.org' file to Pale Moon: Start > Run > %APPDATA% > OK - App Data(Application Data) folder opens again. Navigate to your Pale Moon Profiles folder at: Moonchild Productions\Pale Moon\Profiles\xxxxxxxx.default Open "extensions" folder and paste in 'fdm_ffext@freedownloadmanager.org' file. Close folder.
5. Install new FDM Plugin into Pale Moon: Restart Pale Moon once again and the "Install Add-on" window opens requesting permission to install new FDM Plugin - tick "Allow Installation" box, click "Continue" button then the "Restart Pale Moon" button to finish.

UPDATE FDM PLUGIN IN PALE MOON - STAND-ALONE SET-UP

1. Remove old FDM Plugin from Pale Moon: In Pale Moon's Add-ons Manager locate the old FDM Plugin, click the "Remove" button, and then exit Pale Moon.
2. Re-enable Monitoring in FDM: Start FDM and navigate to FDM > Settings > Downloads > Monitoring and re-tick the "Firefox" box. Click "OK" button to return to main FDM window. Close FDM. (or leave running as you prefer!)
3. Install new FDM Plugin into Pale Moon: Restart Pale Moon once again and the "Install Add-on" window opens requesting permission to install new FDM Plugin - tick "Allow Installation" box, click "Continue" button then the "Restart Pale Moon" button to finish.

AUTOMATIC FDM PLUGIN UPDATES IN FUTURE?

With luck this might be the only time the above rigmarole is needed! The changelog for FDM 3.9.2 (build 1303) includes: [+] Auto update system for Firefox extension. Thus future FDM Plugins updates should be available via the normal Add-ons Manager update system (either automatic or manual, depending on chosen setting in browser Add-ons Manager "Gearwheel" drop-down menu) and hopefully this will work in Pale Moon too? We shall see!

EDIT 11July 13: My misunderstanding! It seems FDM are not putting the FDM Plugin back on the AMO/Add-ons Manager system. The FDM Plugin will instead update via the installed FDM programme (e.g. Update to Firefox 22, FDM Plugin 1.5.7.9 is marked incompatible and disabled with no update available from AMO, yet within a short time there is a silent update to FDM Plugin 1.5.8 which supports Firefox 22-24) but obviously not if you have FDM set to "Turn off automatic updates" as no update check will be initiated! The FDM update did not alter Pale Moon's FDM Plugin 1.5.7.9 - this may well be correct - Pale Moon 20.2.1 does not need the new plugin. Conclusive proof that FDM's plugin auto-updater also works with Pale Moon will have to wait until Pale Moon 24.

[Blacklab]

FDM PLUGIN COMPATIBILITY WITH PALE MOON 24

Regrettably, AFAICS, FDM's Auto update system for Firefox extension fails to update the FDM Plugin in Pale Moon installations. Damn!

Note: If integrating FDM with Pale Moon for the first time, or if doing a full uninstall/fresh re-install of FDM, please follow the original Tutorial.

Updating to Pale Moon 24 will flag the older FDM Plugin 1.5.7.9 as "incompatible" during the Add-ons Compatibility check run at the end of the update sequence and the "Check Now" button will not find a compatible version. The latest, compatible, FDM Plugin 1.6.0 is only available from "onboard" the most recent FDM 3.9.3 (build 1360) programme installer package. It is no longer possible to obtain new FDM Plugin updates separately from Mozilla Add-ons (AMO), Softpedia, or elsewhere - any versions still available are out-of-date. To install FDM Plugin 1.6.0 in Pale Moon 24 proceed as follows:


CHECK INSTALLED FDM VERSION

1. Check installed FDM version: See "About FDM" version and build information via FDM "Help" or "?" toolbar button. Is the latest FDM 3.9.3 (build 1360) released 25 Oct 13 installed?
2. Download latest FDM version?: If required, download FDM 3.9.3 or 3.9.3 Lite (both build 1360) from FDM's official download page - then simply install "over the top" (OTT) of your present FDM installation. (OTT method: Ensure FDM is shut down - then click on new FDM 3.9.3 .exe installer package - update/installation sequence launches - clean-up "housekeeping" is included to remove out-of-date FDM components.)

UPDATE FDM PLUGIN IN PALE MOON - WITH FIREFOX SET-UP

1. Confirm new FDM Plugin installed in Firefox: The automatic and "notified" manual update settings in FDM itself, or the OTT method above, will all update the FDM Plugin in Firefox (but not in Pale Moon). In FDM "Firefox" Monitoring should stay selected and in Firefox's Add-ons Manager the updated FDM Plugin should stay enabled.
2. Remove old FDM Plugin from Pale Moon: In Pale Moon's Add-ons Manager locate the old FDM Plugin (greyed-out, marked incompatible and disabled), click the "Remove" button and then exit Pale Moon.
3. Copy new 'fdm_ffext@freedownloadmanager.org' file from Firefox: Start > Run > Type: %APPDATA% into Run dialog box > OK - App Data(Application Data) folder opens. Navigate to your Firefox Profiles folder at: Mozilla\Firefox\Profiles\xxxxxxxx.default Open "extensions" folder and copy 'fdm_ffext@freedownloadmanager.org' file. Close folder.
4. Add new copy of 'fdm_ffext@freedownloadmanager.org' file to Pale Moon: Start > Run > %APPDATA% > OK - App Data(Application Data) folder opens again. Navigate to your Pale Moon Profiles folder at: Moonchild Productions\Pale Moon\Profiles\xxxxxxxx.default Open "extensions" folder and paste in 'fdm_ffext@freedownloadmanager.org' file. Close folder.
5. Install new FDM Plugin into Pale Moon: Restart Pale Moon and the "Install Add-on" window opens requesting permission to install new FDM Plugin - tick "Allow Installation" box, click "Continue" button then the "Restart Pale Moon" button to finish.

UPDATE FDM PLUGIN IN PALE MOON - STAND-ALONE SET-UP

1. Remove old FDM Plugin from Pale Moon: In Pale Moon's Add-ons Manager locate the old FDM Plugin (greyed-out, marked incompatible and disabled), click the "Remove" button, then exit Pale Moon.
2. Re-enable Monitoring in FDM: Start FDM and navigate to FDM > Settings > Downloads > Monitoring and re-tick the "Firefox" box. Click "OK" button to return to main FDM window. Close FDM. (or leave running as you prefer!)
3. Install new FDM Plugin into Pale Moon: Restart Pale Moon and the "Install Add-on" window opens requesting permission to install new FDM Plugin - tick "Allow Installation" box, click "Continue" button then the "Restart Pale Moon" button to finish.

[half-moon]

This doesn't work with Pale Moon 25.2.1.

[Morgoth]

Neither the Firefox-Plugin-Copy-Method nor the Standalone-Method work for me
The plugin-installation-dialog doesn't show up...

[Night Wing]

@Morgot & half-moon

You'll have to realize things change since Black Lab's comments which were posted here on September 13 of "2013".

I don't use the plugin in question so I can't help the two of you.