User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:18.104.22.168) Gecko/20100914 Firefox/3.6.10 Build Identifier: http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-trunk/firefox-4.0b7pre.en-US.win64-x86_64.installer.exe Using an older Minefield version, I didn't have any problems. Since I updated it, it crashes on loading any page [without some 'about:*-pages']. Updating Minefield doesn't work probably too. I have to update it manually, but the updates don't solve this bug. I already tried to disable all plugins, but it didn't fix the problem either. I'm using the following plugins and extensions: Adblock Plus 1.2.2 Fission 1.0.9 [disabled by Minefield] Java 64bit Plugins [Console, and so on...] MINEFIELD LOADS PAGES SUCCESFULLY IN SAFE-MODE. I didn't find a bug report that matched exactly to my problem. I hope nobody reported a similar problem before. Thank you for your support! Reproducible: Always Steps to Reproduce: There is no special way to reproduce it. I just updated Minefield and recognized the bug. Actual Results: Minefield crashes on loading any page [exclusions >> see above]. Expected Results: Minefield should succesfully open the pages and keep on working probably. I'm using a persona. Disabling it doesn't fix the bug.