User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:18.104.22.168) Gecko/20070914 Firefox/22.214.171.124 Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.9a9pre) Gecko/2007092804 Minefield/3.0a9pre The system wide preferences to handle clicks on the scroll bars isn't used. Instead it defaults to "Jump to the next page". It could be related to Bug 377181. Reproducible: Always Steps to Reproduce: 1. System Preferences -> Appearance -> Click in the scroll bar to: -> choose "Jump to here". 2. Open Firefox. 3. Go to a long page (with scrollbar). Actual Results: It behaves like "Jump to the next page". Expected Results: It should "Jump to here".
it is, see bug 377181 comment 11