Try Resetting Firefox Refresh Firefox - reset add-ons and settings

You can check for problems with the places.sqlite database file in the Firefox profile folder.

• 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

• Places Maintenance: https://addons.mozilla.org/firefox/addon/places-maintenance/

I'm sorry, I don't know what to do with this ... I'm not really tech savoy ... Is there a particular setting I can look for and change?

Thanks for the help!

Um ... This seems kinda radical ... There are probably some changes I've made to some settings that I don't even remember ... I hope it doesn't come to this and that there may be another solution ...

Thanks for the help!

You can remove (e.g. move them to another folder or the desktop) all places.sqlite file(s) in the Firefox profile folder to make Firefox rebuild the places.sqlite database from the most recent JSON backup (bookmarks-####-##-##_xxxx.json) in the bookmarkbackups folder.

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

You can use this button to go to the currently used Firefox profile folder:

• Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)
• http://kb.mozillazine.org/Profile_folder_-_Firefox

You can start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

• Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
• Do NOT click the Reset button on the Safe Mode start window

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

Hi ...

Removing the places.sqlite file didn't work ... Default theme was already the setting ... Starting in save mode did work ... But when I restarted Firefox in normal mode, the back button worked one time then reverted to not working ... I don't know what using save mode did, or how it helps ...

Thanks!

Hey!

Disabling extensions and enabling them one-by-one got results ... The back button didn't work when Curiyo was enabled ... When I disabled it, the back button worked ... All other extensions worked fine ...

Don't know how or why this happened, the back button worked, and then it didn't ... I didn't close Firefox and reopen to find it not working, I just switched websites and it wouldn't work ... Anyway, it at least seems to be something between Firefox and Curiyo ...

Thanks so much for the work ... I really appreciate the help@

Hello,

i solve this problem on Manjaro Linux by going to

about:config and set the browser.backspace_action option to 0 (zero).