I'm running FFP 2.0, an upgrade from my FFP 1.5.0.7 installation. I never used extensions before in FFP and decided to start with 2.0. I installed Adblock Plus, Tab Mix Plus, and the Adblock Filterset updater. The initial installs went fine but all three say that the installation will finish when Firefox is restarted. When I restarted (either by prompting from the extension install or manual), the extensions still do not install. I have rebooted several times and check to make sure not Firefox.exe processes are running.
Any other ideas? A new profile?
Firefox, then delete \Data\profile\extensions.rdf. Then open Firefox. Opening time will be considerably longer, but the file will be rebuilt, and your problem will likely be fixed.
Why this problem happens is not known. BTW, it happens in 1.5.0.x, too.
Vintage!
If you are using the Filterset.G Updater, Adblock Plus specifically recommend to NOT use that updater: http://adblockplus.org/en/faq_project#filterset.g
They do provide a list of suggested filter subscriptions (links on the above page).
Try removing the Filterset Updater and see if that makes a difference. I'm running Adblock Plus and Tab Mix Plus, among other extensions, and all installations and updates go fine after a re-start.
Of course, there's always the old answer of removing all extensions and then adding them back in, one at a time, re-starting each time.
Hope that helps.
Thanks for the heads-up on Filterset.g, but deleting extensions.rdf will work just fine.
Vintage!