Update/InContentUI Problems Rated 4 out of 5 stars
Overall a great add-on, but the newest update uses the incontent UI by default, which makes the edit window impossible to unfocus. That is, I can't switch to the Firefox window or switch tabs without closing the edit window. The only way to use the old behavior is to go to the add-on manager and click "Options" for Stylish.This review is for a previous version of the add-on (184.108.40.206-signed).
You can get a non-modal Edit dialog by right-clicking the entry and choosing Edit. The current behaviour is specified by Firefox - I plan on overriding it in the next release.
As the release notes state, you can go back to the old dialog. "The setting extensions.stylish.manageView is still available - 0 for add-ons manager, 1 for stand-alone dialog, 2 for sidebar"