Rated 5 out of 5 stars

I didn't need the Tab Header to begin with. It's just unnecessary clutter in an email client.
To make matters worse, whenever I hit CTRL+F (the old, traditional shortcut for FIND), up popped a second header, called "Quick Filters."
Then a *third* header popped up, labeled "Filter Messages By...[pick one]."

I freaked at the wasted space and the CLUTTER. But Compact Header has brought me relief and I can sleep, safe from Freddy the Header Monster. Free at last!

This review is for a previous version of the add-on (1.2.4).