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Often with 2 or 3 tabs/websites open, the tab does not have the X on the right side to close it. I have to right clock and hit Close Tab. Seems random. How can I assure all tabs have the X?

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Sometimes when I have 2 or more websites open, the tabs for them do not have the"X" on the right end that I can click to close them. Others right next to it may have the X or not - it seems random. The only way to close the x-less tabs is to right click and select Close tab. How do I tweak it so there are always X's? The only relevant add-on I can think of is Colorful Tabs, and I have the latest version of it.

Sometimes when I have 2 or more websites open, the tabs for them do not have the"X" on the right end that I can click to close them. Others right next to it may have the X or not - it seems random. The only way to close the x-less tabs is to right click and select Close tab. How do I tweak it so there are always X's? The only relevant add-on I can think of is Colorful Tabs, and I have the latest version of it.

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If you are not new to browsers, you would probably prefer the single "X" at the far right of the tabs bar to close the active tab, but in any case your choices are described for the configuration option of browser.tabs.closeButtons, see

More information on configuration variables if you are not already familiar with about:config is available in about:config entries and for users not familiar with the process there is about:config (How to change).

Modified by David McRitchie