Hey,

Have you tried starting Firefox in Safe Mode? Hold down "shift" while Firefox is starting up. If it doesn't happen in Safe Mode, you should read Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems.

There is also a lot of useful stuff in the Firefox is slow troubleshooting section as well.

Hopefully this helps!

Hi Matt, I went into time machine and went backwards to the last version and was able to get into Firefox and work. I re-installed the newest version, but my bookmarks have ALL disappeared! And the newest version is giving me the same problem. I tried the shift key, but it is not doing anything. It's been 5 min now opening Firefox. Btw I can work in safari just fine and I've checked my Internet connection all is fine.

Create a new profile as a test to check if your current profile is causing the problems.

See "Basic Troubleshooting: Make a new profile":

• https://support.mozilla.org/kb/Basic+Troubleshooting#w_8-make-a-new-profile

If that new profile works then you can transfer some files from the old profile to that new profile, but be careful not to copy corrupted files.

See:

• http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

See also:

• http://kb.mozillazine.org/Bookmarks_history_and_toolbar_buttons_not_working_-_Firefox
• https://support.mozilla.org/kb/Bookmarks+not+saved#w_fix-the-bookmarks-file

You were right on! My places.sqlite file was corrupt! THANK YOU!