The value should switch from 'false' to 'true'.Ĥ. Double click on the option that is left in the list. In the address line, type in 'about:config' (without quotation marks). Once restarted, this window will pop-up:Ĭheck 'Reset all user preferences to Firefox defaults' and try the initial steps again. You can restart in Firefox Safe Mode via ' Help → Restart with Add-ons disabled.'.Ģ. Finally, in the filter field, type in browser.warnOnRestart and set it to True If all of the above fails.ġ. Next, in the filter field, type in browser.warnOnQuit and set it to True (this seems to work - we haven't tested ourselves)Ĥ. Try the following:Ģ. In the filter field, type in and set it to Trueģ. Close about:config tab and it should work The value should switch from ' false' to ' true'.Ĥ. This should filter out all other optionsģ.
In the filter field, type in browser.showQuitWarning. In the address line, type in ' about:config' (without quotation marks). By default this function has been disabled. How can I fix that? (The same problem still exists in Firefox 5 through the latest Firefox version - it doesn't look like they are going to fix this)Ī. I've downloaded Firefox 4 and now I am no longer able to save my tabs.