Is it possible to get a backup of firefox addons?

Solution 1:

FEBE (Firefox Environment Backup Extension) allows you to quickly and easily backup your Firefox extensions. In fact, it goes beyond just backing up -- It will actually rebuild your extensions individually into installable .xpi files. Now you can easily synchronize your office and home browsers.

p.s. works beautifully

Solution 2:

MozBackup allows you to backup and restore bookmarks, mail, contacts, history, extensions, cache, addons etc.

It allows you the flexibility to choose what part of your profile you want to save

It lets you backup and restore entire profiles that way you can backup and restore multiple FireFox profiles

It is compatible with

• Firefox 1.0 - 3.6
• Thunderbird 1.0 -3.0
• Sunbird 0.3 - 0.9
• Flock 1.0 - 2.0
• Postbox 1.0 - 1.1
• SeaMonkey 1.0a -2.0
• Mozilla Suite 1.7 - 1.7.x
• Spicebird 0.4 - 0.8
• Songbird 1.0
• Netscape 7.x, 9.x
• Wyzo

Solution 3:

Or...in Windows, you can just go to %appdata%\mozilla\firefox\profiles\[your default profile]\ and copy the extensions directory to a removable drive or other backup location. However, this probably will not save your extension(s)' data (things like session histories, etc.).

I just recommend backing up the contents of your %appdata%\mozilla\firefox and %userprofile%\local settings\application data\mozilla\firefox directories (in XP; this is slightly different for Vista/7); this step provides a full backup of the entirety of your firefox settings, history, bookmarks and extensions; if you wanted or needed, you could even transfer this backup to a freshly installed system or a different Windows computer altogether, although this may cause errors...

See Moving your profile folder for more; this is an excellent article for anyone who wants to backup or move their Firefox profile.

As for non-windows systems such as Linux, I suspect that the directory layout structure might be similar, even though the default parent directory location would be (obviously) different (for instance, ~/.mozilla/firefox). I have not tried, but it is possible to transfer your Firefox settings and data from a Windows computer to a non-Windows one (or vice-versa); see Moving from Windows to Linux for more.