Not compatible with TabMixPlus 0.3.8.1 Rated 3 out of 5 stars

The new version Tab Mix Plus 0.3.8.1 is incompatible with Undo Closed Tabs Button version 3.0.3 (for FireFox 3.0.13) too.

This review is for a previous version of the add-on (3.5.1).