[[https://support.mozilla.org/en-US/questions/1271141|My previous post]] With the latest update, the CSS tweak to disable the creation of new tab when middle clicking the empty tab bar area no longer works. Is there another workaround for disabling this function or where the documentation for the tab bar CSS is? I honestly don't get why Mozilla have to break the tweaks every few updates. This along with the non standard shortcut key combos such as creating a private window using [Win + Shift + P] instead of [Win + Shift + N] doesn't make much sense.