User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:46.0) Gecko/20100101 Firefox/46.0 Build ID: 2016042500 Steps to reproduce: Whenever hitting ctrl+q there is no confirmation dialogue for multiple tabs, even though in settings there should be confirmation. It just quits

can you try visiting about:config and then toggle these settings and see the difference please browser.showQuitWarning browser.warnOnQuit browser.tabs.warnOnCloseOtherTabs browser.tabs.warnOnClose Thanks

None of those worked.

Hello Reporter, I tried duplicating this issue. I didn't see the problem in FF 44.0 with my current profile. However, as soon as I upgraded my FF to 46.0.1, I could reproduce the problem with my existing profile. However, as soon as I created a new profile, FF showed the expected warning window on CTRL + Q when browser.showQuitWarning and browser.warnOnQuit settings were set to "TRUE". If you have not tried so, can you please try with a new profile after ensuring about:config settings and let us know your findings? Below is a link on how to create a new profile: https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles Tested on: User Agent Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:44.0) Gecko/20100101 Firefox/44.0 User Agent Mozilla/5.0 (X11; Linux x86_64; rv:46.0) Gecko/20100101 Firefox/46.0

One of the two was already set to true, but setting the other to true seems to give some session restore dialogue when pressing ctrl+q

Closing it as duplicate of https://bugzilla.mozilla.org/show_bug.cgi?id=633504 See also https://bugzilla.mozilla.org/show_bug.cgi?id=419009 for more information.