Extra credit: Guess which one we don’t suggest!

When to Use Protect Tab vs Lock Tab in Firefox

Select Specific Tab with Keyboard Hotkey in Firefox

Make Firefox Use Multiple Rows of Tabs

Save Windows and Tabs When Restarting Firefox

Open Firefox Searches in New Tab

Remove Close Button from Firefox Tabs

Disable Firefox Tab Scrolling

Save Tab Space for Frequently Used Tabs in Firefox with FaviconizeTab

Close Tab Quickly with a Shortcut Key in Firefox

 

It’s clearly the last one…