Click 'Start in Safe Mode' (''not'' Reset). * Help menu > Restart with Add-ons DisabledĪfter Firefox shuts down, a small dialog should appear. * '3-bar' menu button > '?' button > Restart with Add-ons Disabled In case one of your extensions is involved, could you test Gmail in Firefox's Safe Mode? That's a standard diagnostic tool to deactivate extensions and some advanced features of Firefox. * Alt+t (open the classic Tools menu) > Page Info > Security > 'View Cookies' * right-click and choose View Page Info > Security > 'View Cookies' Our support article has the basic steps for making Firefox as compatible as possible: ]. Read this answer in context 👍 6 All Replies (6) Not all add-ons are disabled: Flash and other plugins still runĪfter Firefox shuts down, a small dialog should appear. Help menu > Restart with Add-ons Disabled.'3-bar' menu button > '?' button > Restart with Add-ons Disabled.You can restart Firefox in Safe Mode using either:

More info: Diagnose Firefox issues using Troubleshoot Mode. In the dialog that opens, you can remove the site's cookies individually. Alt+t (open the classic Tools menu) > Page Info > Security > 'View Cookies'.right-click and choose View Page Info > Security > 'View Cookies' But after reading the mail if i want to reply to that mail, the reply functions hangs saying loading, but will not load.While viewing any page on (search results will work), try either: Our support article has the basic steps for making Firefox as compatible as possible: Websites say cookies are blocked - Unblock them. Do you recall customizing how Firefox works with cookies?

Mozilla firefox will not open gmail