Hi waraqah, some others users are reporting that some aspects of the new "in tab" preferences page do not work for them; so far, I only saw one other report of Firefox freezing. As a diagnostic, if you don't mind, could you test the Options page in Firefox's Safe Mode? This will help assess whether this problem is caused by one of your extensions. Here's how: ''If Firefox is not running:'' Hold down the Shift key when starting Firefox. ''If Firefox is running:'' You can restart Firefox in Safe Mode using either: * "3-bar" menu button > "?" button > Restart with Add-ons Disabled * Help menu > Restart with Add-ons Disabled and OK the restart. ''Both scenarios:'' A small dialog should appear. Click "Start in Safe Mode" (''not'' Refresh). Any improvement with the in-tab Options? ---- Or you might need to switch back to the old pop-up style Options dialog. Here's how: (1) In a new tab, type or paste '''about:config''' in the address bar and press Enter/Return. Click the button promising to be careful. (2) In the search box above the list, type or paste '''pref''' and pause while the list is filtered (3) Double-click the '''browser.preferences.inContent''' preference to switch it from true to false (Note: I don't know whether the old dialog will be in Firefox forever or is a transitional feature. As you've probably noticed, the long-term trend is to remove things that pop up.) Does that one work without freezing?