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tab close buttons disappear when URL launched from another app

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  • 3 have this problem
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  • Last reply by TomBates

TomBates
TomBates
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When a new tab is opened via launching a URL from another application on Windows (e.g. Outlook), the tab close buttons disappear, even with only two tabs. By carefully grabbing the right window border and dragging *inwards* (i.e. making the window narrower), the buttons suddenly appear on all tabs, thus illustrating that it's not a problem with the tab widths.

When a new tab is opened via launching a URL from another application on Windows (e.g. Outlook), the tab close buttons disappear, even with only two tabs. By carefully grabbing the right window border and dragging *inwards* (i.e. making the window narrower), the buttons suddenly appear on all tabs, thus illustrating that it's not a problem with the tab widths.

Chosen solution

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).

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cor-el
cor-el
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  • Top 10 Contributor
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Seçilmiş Həll

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).

TomBates
TomBates Question owner
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Now I know about Safe Mode! The culprit turns out to be the add-on ColorfulTabs 4.8.1.6.2.1.

Thanks for the help!