Rated 5 out of 5 stars
I love the tab size and tabs always in titlebar settings. This extension is almost perfect for running a single bar (menu/nav/bookmark/tab/addon) setup. Certainly the best that's available. Using this has allowed me to use a few less extensions and added some nice extra functionality to boot.
I'd like to see an option to use a slimmer Firefox button and/or replace it with the merged menu button. The address bar's encryption status is kinda huge on some sites; a way to shrink that down would be very nice as well (Stratini Super has nice horizontal space reduction on these elements.). I'm not sure if it's possible, but I'd love min/max size settings on the address bar. With the merged bar setup I'm using, the number of tabs/address bar size can mess with each other.
Now that I've discovered this, I can't help but wonder why I haven't heard of it before now. This easily goes into my top 5 extensions. Thanks!