User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.2) Gecko/20100115 Firefox/3.6 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.2) Gecko/20100115 Firefox/3.6 When I open a fresh browser window, keep the right mouse button pressed and drag the cursor all the way down to the bottom of the screen (under the windows taksbar) and then release the mouse button, a very long right-click-menu appears that seems to contain all possible entries the browser offers. However, it can't be reproduced as soon as I change site or open a new tab. I am using the german version on a win7 x64 PC. Reproducible: Sometimes Steps to Reproduce: 1. Open a fresh browser window. 2. Keep the right button pressed down. 3. Drag mouse cursor all the way down the screen under the taskbar. 4. Release mouse button. Actual Results: A super long right click menu appears containing probably all possible entries. Expected Results: I dunno. Nothing? German Version on Win7 x65 (also German). Default theme.

WFM with Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a2pre) Gecko/20100211 Minefield/3.7a2pre ID:20100211050928. Can you try in safe mode? http://support.mozilla.com/en-US/kb/Safe+Mode

Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.3a2pre) Gecko/20100211 Minefield/3.7a2pre Yeah, confirmed. This is probably a duplicate.