Don’t you hate it when you have so many tabs open you can’t see what exactly is open? Well with the FishEyeTab extension for Firefox, you can kiss those days goodbye. This extension auto-expands your tabs when you hover over one with your mouse.

An alternative to scrolling when there are many open tabs, and they become too small to see. User can zoom tab labels by moving the mouse cursor over them. Fisheye zoom is activated only when tabs occupy the whole width of the window. Close button moved to right FF 1.0 – style.
This cool animation makes it quick and easy to see which tab is which. You also don’t sacrifice much tab toolbar space either.
2 Tab About:Config TipsDo you like it or hate it when Firefox decides to give you the left and right scroll buttons up on your tab bar to navigate through a long list of tabs?
Minimum Tab Width
One way of fixing this
Easier Multiple Tab HandlingThere are many extensions out there that allow you to tweak your tabs, however not many will let you close multiple tabs all in one swift movement. The Multiple Tab Handler extension for Firefox does that and a lot more.
20 Tips to Tweak Your TabsYou owe a lot to your tabs in Firefox. Without them you would have a desktop filled with clutter. So why not do something nice for your tabs and give them a few tweaks?
Coloring Your Tabs
ChromaTabs –