Firefox has a default minimum tab width of 76 pixels, and you can easily lower that to 50 pixels, although compared to Chrome, you still won't be able to fit as many tabs before scroll buttons appear. To make the tabs narrower than 50 pixels requires either: (A) Using pinned tabs for tabs you intend to keep open for an extended time These only show the icon, no title text: [[Pinned Tabs - keep favorite websites open and just a click away]] (B) Diving into the community-supported (i.e., not officially supported) realm of creating a userChrome.css file to apply custom style rule overrides directly to the interface. Before trying those options, see whether this gets you to a good place: (1) In a new tab, type or paste '''about:config''' in the address bar and press Enter/Return. Click the button accepting the risk. ''More info on about:config:'' [[Configuration Editor for Firefox]]. ''The moderators would like us to remind you that changes made through this back door aren't fully supported and aren't guaranteed to continue working in the future.'' (2) In the search box in the page, type or paste '''browser.tabs.tabMinWidth''' and pause while the list is filtered (3) Double-click the preference (or click the pencil button) to display an editing field, and change the value to '''50''' then press Enter or click the blue check mark button to save the change. ''Although this page lets you see any value you want, values lower than 50 will be rounded back up to 50.'' What do you think?