The X that closes tabs disappears and I cannot close tabs now because there is no buton to close any tabs. I have the colorful tabs installed am using FF 6.0.2
The tabs use to have an X to click(on either side of the tab) in order to close each tab. This X from time to time after restarting FF disappears. I have the option in preferences for closing tabs checked. I can no longer close tabs because there is no X to do this function, and I cannot see any other preference to check that would enable this function.
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Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
- Don't make any changes on the Safe mode start window.
- https://support.mozilla.com/kb/Safe+Mode
See also:
Here is what fixed it. I held the cursor over a tab and right clicked. A menu appears and two of the options that were checked were "protect tab and lock tab" After I unchecked both of these options, the X appeared on each tab.