Firefox 81 后的多行 tab 的 css

[psklf]

https://github.com/MrOtherGuy/firefox-csshacks/blob/master/chrome/multi-row_tabs.css

旧版本参考我以前发的帖子： https://www.v2ex.com/t/488965

[psklf]

附操作指南：

Open about:config and set toolkit.legacyUserProfileCustomizations.stylesheets to true.

Open a new tab on about:support and click the button next to “Profile Folder“

Go to the “chrome” directory at the profile folder, or create it if it doesn’t exist.

Create a file named “userChrome.css” (if it doesn’t exist) and open it in a text editor.

Copy the css code from below

Paste it into userChrome.css and save.

Restart Firefox