There is an issue with FireShot 0.93 plugin. I install a fresh copy of this plugin and restart, then go to the Add-ons Manager and select "options" for Fireshot. This hangs the browser and made it crash. You actually need to close the program from Windows Task Manager and hunt down all palemoon* images, since the browser do not start again otherwise. So far the plugin do not start even but palemoon shows it as installed.
Tested in 2 machines:
OS: Windows XP SP2 x64
Hardware: AMD Phenom X4 + 8 GB
RAM: 8 GB
OS: Windows XP SP3 LatinAmerican
Hardware: Intel Atom + 2 GB RAM
RAM: 2 GB
Palemoon versions tested: 4-5-6-7
Any clue what happens?
