1. Install Stylish and restart Firefox when prompted.
   • https://addons.mozilla.org/firefox/addon/stylish/
2. Click the ≡ Menu Button and choose Add-ons.
3. In the Add-ons Manager, click User Styles on the left.
4. Click the Write New Style button at the top. Paste the following in the text box, give the style a name, then click the Save button.

@namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul);

.tabbrowser-tab .tab-close-button { display: -moz-box !important }

If you don't want to install an add-on, you can use the userChrome.css file instead, but I don't recommend it.

• http://kb.mozillazine.org/UserChrome.css

Thank you very very much for such a quick and detailed response. I've installed Stylish add-on and your solution seems to work just fine.

It feels strange, installing hundreds of KB of code (and possibly X new vectors of attack, heh), to again have something that was always there.

Just because some bored egoistic mediocre thought he knows better. Sigh.

Thanks once again.

If you hold the shiftbar and it moves the tab to the left. I do this all the time.

Easiest to close a tab is to middle-click the tab with the mouse wheel.

• https://support.mozilla.org/kb/Keyboard+shortcuts
• https://support.mozilla.org/kb/Mouse+shortcuts