Restoring Multi-Row Tabs in FF 107

Firefox’s update to version 107 destroyed my custom CSS for multi-row tabs. But the internet has an answer. These are the steps:

  1. Go to about:config and turn layout.css.moz-box-flexbox-emulation.enabled to “true” (source of this important advice: here)
  2. Strip out any old multi-row code from your C:\Users\[YOUR USER HERE]\AppData\Roaming\Mozilla\Firefox\Profiles\[PROFILE NAME]\chrome\UserChrome.css file [or create one if this is a fist time]
  3. Replace it with the code at MrOtherGuy/firefox-csshacks [link updated].

Worked for me.

This entry was posted in Internet, Software. Bookmark the permalink.

4 Responses to Restoring Multi-Row Tabs in FF 107

  1. JJAA says:

    Thank you!!! Just doing the about:config step is all it took for me… so freaking relieved that it’s fixed!!!

  2. JS says:

    I get multi rows in bookmarks but in tabs.
    Any fix?

  3. JS says:


    I get multi rows in bookmarks but NOT IN TABS.
    Any fix?

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.