What the heck is this install reinstall all about? Firefox comes with a handy dandy tool called Update.

SEE https://addons.mozilla.org/en-US/firefox/addon/session-manager/ Doesn't work with FF 16 Rated 1 out of 5 stars

by DimmY on October 21, 2012 · permalink

The extension cannot restore saved sessions in Firefox 16.0.1.

Try to start Firefox in Safe mode via one of these methods:

• On Windows, hold down the Shift key while starting Firefox with a double-click on the Firefox desktop shortcut
• On Mac, hold down the Options key while starting Firefox
• Help > Restart with Add-ons Disabled

• https://support.mozilla.org/kb/Safe+Mode
• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

You can also check for problems with the localstore.rdf file.

• http://kb.mozillazine.org/Corrupt_localstore.rdf

1. Update SessionManager to 0.7.9.1 - https://addons.mozilla.org/en-US/firefox/addon/session-manager/versions/
2. Update TMP to 4.0.3 (released July 18, 2012) - https://addons.mozilla.org/en-us/firefox/addon/tab-mix-plus/
   • that solved the problem for this user on the SessionManager bug reports page - https://www.mozdev.org/bugs/show_bug.cgi?id=25177

The comment on the Add-ons page about Session Manager not working with Firefox 16 is not the case. I use Session Manager everyday and have not experienced a problem with Firefox 16 (or prior), and it also works with Firefox 17 (beta) and 18 (aurora).

Other - Update your plugins

• Check your Plugins - https://www.mozilla.org/en-US/plugincheck/
• Java
  • https://support.mozilla.org/en-US/kb/use-java-plugin-to-view-interactive-content
• Flash (Adobe Flash Player)
  • https://support.mozilla.org/en-US/kb/install-flash-plugin-view-videos-animations-games
  • https://support.mozilla.org/en-US/kb/keep-flash-up-to-date-and-troubleshoot-problems

TheOldFox, thank you very much!!! You know, you are my hero for the moment! :) Indeed, I had previous versions of both Tab Mix Plus and Session Manager - and for some reason Firefox did not even try to update them. Once I've updated these extensions manually (by finding their web-sites and installing the latest versions), I have completely successful further installation of Firefox 16.0.2. All my tabs are with me! Let the Shwartz be with you! (c) Spaceballs

P.S. So the issue seems to transform into the following: why Firefox did not automatically detect the updates of Tab Mix Plus and Session Manager though I am sure Firefox was detecting them before?

Glad the information that I provided helped to solve your problem.

Be sure Add-ons are set up update automatically. The installation default in current Firefox versions is to have Add-ons update automatically (silently) while you browse, but the user can change that for all Add-ons (first item below) or for one or more selected Add-ons (second item below):

• Firefox button (or Tools) > Add-ons > Extensions, click the "gear" symbol to the left of the search box on the Add-ons display, verify that "Update Add-ons Automatically" is checked, if not click that item to place a check mark.
• While on the Add-ons > Extensions display you may also want to click the "gear" symbol and click "Reset All Add-ons to Update Automatically" just below the item above. This will reset any that you have manually set to not update automatically on an individual basis. That is done by clicking "More" next to each/any Add-on, scroll to the bottom and look at the selection for "Automatic Updates" (Default, On, Off). To return to the Add-ons > Extensions list, click the back arrow on your Firefox Navigation toolbar.