'task count' causes problems, but that can be disabled. Great extension. Rated 5 out of 5 stars
Don't get me wrong; this is an AWESOME extension, and the added functionality (as compared to the Greasemonkey script) is incredible. Yet something in the completely freezes my Firefox installation after nearly every change. This happened with the Greasemonkey script, and it seems worse with the extension.
I'm running FF 3.5.5 on a brand-new Windows 7 x64 installation. Still hoping to see a fix for this, as this is an INCREDIBLE tool.
*** UPDATE ***
Andrew responded VERY quickly to my concerns, and his tip--to disable the 'Task Count' option in the 'Settings'--did the trick. I've adjusted my rating to reflect this.
Help me to find the problem
Thanks for your feedback!
Try to disable tasks count through the settings section (RTM Settings --> A Bit Better RTM --> Tasks Count) and see if it helps.