User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b2) Gecko/20050621 Firefox/1.0+ Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b2) Gecko/20050621 Firefox/1.0+ When you have a disabled extension selected and you click the Options button, the Extension Manager freezes. Reproducible: Always Steps to Reproduce: 1. Have a disabled extension. 2. Select it by clicking on it. 3. Click the Options button Actual Results: Extension Manager freezes, but the rest remains functional.
This is another aspect of bug 298186 - the patch just landed today. Also of interest is bug 298140 *** This bug has been marked as a duplicate of 298186 ***