Standard troubleshooting steps
firefox -safe-mode
Reset preferences ( Safe mode option )
Troubleshoot plugins Disable plugins ( Ex: Adobe Reader, Flash, Java, QuickTime, RealPlayer, and VLC )
firefox -ProfileManager
Slowness when browsing?
Go to your profile folder and vacuum your db files
cd $HOME/.mozilla/firefox/*.default/; for i in *.sqlite; do echo "VACUUM;" | sqlite3 $i ; done
Disable favicon and site-icon caching. Append do your user.js file:
user_pref("browser.chrome.favicons", false); user_pref("browser.chrome.site_icons", false);
Turn off IPv6. Append to your user.js file:
user_pref("network.dns.disableIPv6", true);
Disable dbus notifications within Firefox. Append to your user.js file,
user_pref("toolkit.networkmanager.disable", true);
Turn off rich colour support. Append to user.js:
user_pref("gfx.color_management.enabled", false);
Enable form colours. Append to user.js:
user_pref("browser.display.use_focus_colors", true); user_pref("browser.display.focus_text_color", "#666666");