Great extension, but 1.1.3 is causing performance problems Rated 4 out of 5 stars

Very useful extension, thank you for creating and publishing it.

1.1.3 is causing major performance issues (pages slow to load, and often timing out) on my Windows 7 machine however. Firefox 4.0.1.

Didn't have these issues with 1.1.2.

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