Recent answers to How to put tabs under adress bar?https://support.mozilla.org/ar/questions/13137452020-11-15T14:42:15-08:00See my reply in this thread for code in userChrome.css.
/questions/1305615 tabs below address bar -2020-11-15T14:42:15-08:00cor-elhttps://support.mozilla.org/ar/questions/1313745#answer-1367847<p>See my reply in this thread for code in userChrome.css.
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<ul><li><a href="/questions/1305615" rel="nofollow">/questions/1305615</a> tabs below address bar - an ongoing problem not fixed&nbsp;!!!
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<p>It is not that difficult to create <b>userChrome.css</b> if you have never used it.
</p><p>The first step is to open the "Help -&gt; Troubleshooting Information" page and find the button to access the profile folder.
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<ul><li><a href="https://support.mozilla.org/en-US/kb/use-troubleshooting-information-page-fix-firefox" rel="nofollow">https://support.mozilla.org/en-US/kb/use-troubleshooting-information-page-fix-firefox</a>
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<p>You can find this button under the "Application Basics" section as "Profile Folder -&gt; Open Folder".
If you click this button then you open the profile folder in the Windows File Explorer.
You need to create a folder with the name <u>chrome</u> in this folder (name is all lowercase).
In the <b>chrome</b> folder you need to create a plain text file with the name <b>userChrome.css</b> (name is case sensitive).
In this userChrome.css text file you paste the text posted.
On Mac you can use the TextEdit utility to create the userChrome.css file as a plain text file.
</p><p>In Windows saving the file is usually the only time things get more complicated because Windows can silently add a .txt file extension and you end up with a file named <i>userChrome.css.txt</i>.
To avoid this you need to make sure to select "All files" in the dialog to save the file in the text editor using "Save File as".
</p><p>You need to close (Quit/Exit) and restart Firefox when you create or modify the userChrome.css file.
</p><p>See also:
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<ul><li><a href="https://www.userchrome.org/what-is-userchrome-css.html" rel="nofollow">https://www.userchrome.org/what-is-userchrome-css.html</a>
</li><li><a href="https://www.userchrome.org/how-create-userchrome-css.html" rel="nofollow">https://www.userchrome.org/how-create-userchrome-css.html</a>
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<p>In Firefox 69 and later you need to set this pref to true on the <b>about:config</b> page to enable userChrome.css and userContent.css in the chrome folder.
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<ul><li>toolkit.legacyUserProfileCustomizations.stylesheets = true
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<p>See:
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<ul><li><a href="https://www.userchrome.org/firefox-changes-userchrome-css.html" rel="nofollow">https://www.userchrome.org/firefox-changes-userchrome-css.html</a>
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