A necessity for high resolution, widescreen displays Rated 5 out of 5 stars
I've been using this extension for years and absolutely love it! The main benefits are 1) zoom level increment adjustment, 2) default zoom adjustment, and most importantly 3) remembering the zoom level per site.
No Squint performs flawlessly with FF3.0. However, I had to hack it to get it to work with FF3.1b2 because there isn't a new version for FF3.1. No Squint worked fine with the hack until I upgraded to FF3.1b3. Now No Squint no longer remembers zoom settings -- even when simply switching from tab to tab.
The good news is that I did find another extension that provides the same basic functionality as No Squint and works with FF3.1. It's called "Default FullZoom Level" and can be found here: https://addons.mozilla.org/en-US/firefox/addon/6965.