This happened to me, but I only have AdBlock Plus installed. I was able to remedy the issue. I had originally installed AdBlock Plus directly from the adblockplus.org website not knowing Ubuntu had a package for it...
Here is what I did: 1) Close FireFox 2) sudo dpkg -r adblock-plus mozilla-firefox-adblock 3) Restart FireFox 4) Manually remove the AdBlock Plus extension 5) Close Firefox 6) sudo apt-get install adblock-plus mozilla-firefox-adblock 7) Restart FireFox and enjoy Ad free browsing once again. So the lesson learned here is to see if Ubuntu has a packaged version of a given plugin -- since they go through the trouble to make the upstream version compatible with the current Ubuntu release. I don't know if there is any way to have the package manager detect if any users have local add-ins installed and attempt to resolve those issues. -- ubuntu hardy firefox update - adblock plus and flashblock not working https://bugs.launchpad.net/bugs/212819 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs