I just patched my Firefox to disallow this annoying behaviour. On OS X, unfortunately, but the patch should be similar on Windows, although the paths will differ. Used Midnight Commander to edit inside omni.ja, which is a plain Zip archive.
** Attachment added: "firefox_close_other_tabs.png" https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1064985/+attachment/3410459/+files/firefox_close_other_tabs.png -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1064985 Title: Firefox 16. Warning about close multiple tabs is always on Status in “firefox” package in Ubuntu: Invalid Bug description: env LANG=en_US.UTF-8 apt-cache policy firefox firefox: Installed: 16.0+build1-0ubuntu0.12.04.1 Candidate: 16.0+build1-0ubuntu0.12.04.1 Version table: *** 16.0+build1-0ubuntu0.12.04.1 0 500 http://archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu/ precise-security/main amd64 Packages 100 /var/lib/dpkg/status 11.0+build1-0ubuntu4 0 500 http://archive.ubuntu.com/ubuntu/ precise/main amd64 Packages steps: disable browser.tabs.warnOnOpen in config opened 3 or more tabs. right clicked a tab. choose "close other tabs" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1064985/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

