Holy smokes - look what's working again! Proton Drive. And Proton Calendar is all better on PM

[andyprough]

We last discussed this in October 2025 in this thread: https://forum.palemoon.org/viewtopic.ph ... ve#p265740

Proton had found the problem and promised to fix it in their "next update", but the months went by and there was nothing. Tried Proton Drive again today and it's working perfectly again!

And some old errors in Proton Calendar seem fixed now.

Have to try out their other web apps.
- Lumo AI isn't working, but I didn't expect that to work and haven't turned in a bug report on it yet. I should do that.
- Proton Pass looks perfect as usual
- Proton Docs and Proton Sheets give an "unsupported browser" message. Bit of a bummer. Maybe I'll bug report those just for the heck of it.
- ProtonVPN site looks correct
- Proton Wallet is a no-go right now
- and of course Proton Meet video conferencing isn't working with Pale Moon, but that's to be expected without WebRTC. Might have to try that in Basilisk.

Anyway - the basics are now working - mail, calendar, pass, vpn, drive. Progress!!

[andyprough]

Looks like uploading and downloading files to Proton Drive does not work with Pale Moon, so it's time for some bug reports.

File uploading failure gives no output in the Pale Moon Error console.

File download attempt gives a 'TypeError: ReadableStream method pipeThrough not yet implemented' error.

File sharing does seem to work, so Proton Drive is not completely useless at this point. Moving files between folders works, but previewing files like text files and photos does not work.

Good news - you can now log in and share files, which you couldn't do since prior to last September.
Bad news - you can't upload or download files, preview them, or open Docs or Sheets. Upload, download, and preview used to work prior to last September.

[andyprough]

Basilisk with the new and improved Greasemonkey extension by @sinfulosd with all the readablestream, textdecoderstream, and transformstream user.js scripts from Basilisk-dev is working with Proton much better. Some of the apps are working with Basilisk with these Greasemonkey scripts that don't work with Pale Moon right now. Proton Docs, and Lumo AI are working so far. Proton Sheets doesn't work, but I don't use that anyway so no big loss.

Proton Drive is still not allowing uploads with an "Upload Failed·l.arrayBuffer is not a function" error. But file downloads are now working.

Proton Wallet and Proton Meet are still not working, but I did not expect much from them.

Getting Proton Sheets working, and getting Proton Drive file uploads working would be valuable. I'll contact Proton.

UPDATE - not getting the same success using these greasemonkey scripts with Pale Moon on Proton's Lumo AI. On a fresh new Pale Moon profile with the latest Greasemonkey from @sinfulosd and the Basilisk-Dev user scripts, I get a "ReadableStream method pipeThrough not yet implemented" error when trying to do a Lumo AI chat.

Using Proton Drive is working the same as Basilisk with the same inability to upload files with an "Upload Failed·l.arrayBuffer is not a function" error.

Proton Docs is working the same as Basilisk. Proton Sheets, Proton Wallet, and Proton Meet are not working, same as Basilisk.

[walmar]

Proton Drive is still not allowing uploads with an "Upload Failed·l.arrayBuffer is not a function" error. But file downloads are now working.

While I haven't tested it myself in this specific case, the unofficial Polly+ extension for Waterfox 56 has included the Blob polyfill since version 2024-01-26. You could also try this polyfill, as it covers Blob.prototype.arrayBuffer(), Blob.prototype.stream() and Blob.prototype.text().

[andyprough]

While I haven't tested it myself in this specific case, the unofficial Polly+ extension for Waterfox 56 has included the Blob polyfill since version 2024-01-26. You could also try this polyfill, as it covers Blob.prototype.arrayBuffer(), Blob.prototype.stream() and Blob.prototype.text().

Yes, I've gotten past this point with edits of the Greasemonkey script with BlobArrayBuffer, so file uploading is now possible. Now I'm trying to get file Preview working in Proton Drive. After that, I've got to figure out how to get Proton Drive to allow double mouse clicks to open files and folders - right now it's doing nothing, and there's no apparent way to go down into a folder. Anyway, fortunately a lot of this functionality can be fixed via creative Greasemonkey scripting, and hopefully more of it to follow.

Edit - just realized, I don't need to double-click into folders, I can just use the drop-down arrows next to the folders in the side pane to switch between folders. And I've got Proton Docs running, so the previews can happen there.

However, file Downloads do not work at all, so the only way to move a file out of Proton Drive would be to share it and open it in a different browser. At which point you might as well just use the different browser to access Proton Drive. So I'm going to send Proton a bug report, see if I can get something done.