I just upgraded to v 31.0 and at least two of my add-ons stopped working: session manager and Bufferapp. When I try to click on a session to restore it nothing happens. The Bufferapp should appear in the context drop down menu & doesn't. I've also noticed that I can no longer do a google search from the main URL box as I could before. I also can't get to about:config using this box. I also cannot do a search using the Google search box on the Google search page. I just deleted both add ons and then tried to reinstall them. I got an error message saying FF could not modify the file. What is going on here? There may be other add-ons not working as well. I haven't checked all of them. It does appear that some of them like NoScript are working normally. Before the upgrade all my add-ons were working fine. Are there any known bugs with the upgrade I should be aware of? I wonder if I should reinstall the previous version.