Tab Utilities is the last tab management Firefox add-on you will ever need
Tab Utilities is not for minimalists. I can only imagine how much thought had to go into organizing the myriad options the add-on offers into a somewhat sensible Options dialog. Even so, going through all of the options the add-on provides took me several minutes.
This add-on has it all. You name it -- it can do it. Protect tabs? Check. Faviconize? Sure. Locking and freezing too, but that's just the beginning. You can configure what happens when you left-click on a tab, right-click, middle-click, control-click, alt-click ... I think you get the point.
You can style unread tabs, read tabs, locked tabs, etc. You can control the orders in which tabs open. Honestly, I could not find a single tab-related operation I could think of, that I could not perform using this add-on.
So once more, if you're a minimalist, this add-on is not for you. Stick with Tabberwocky. But if you like having every conceivable option at your disposal, Tab Utilities is where it's at.
I only wish they would add one more option ... a way to "chain" operations, so I could protect a tab and faviconize it in one fell swoop.