Firefox Quantum changed the minimum width of Tabs, previous versions of Firefox had it set to a greater value.

(*minimum tab width - when you have a lot of open tabs they shrink to some predefined minimum width).

How do I increase this predefined minimum tab width?


You can increase the tab min width by using advanced settings in about:config:

  1. enter about:config in URL bar
  2. click the "I accept the risk" button
  3. use the search box to search for browser.tabs.tabMinWidth
  4. double-click the item and set a new value

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