*** Please submit non packaging issue (e.g. feature requests) bugs to the Debian BTS and the upstream bugzilla (https://bugzilla.mozilla.org/enter_bug.cgi?product=Firefox) and put a reference to the bugzilla bug in the Debian bug report to ease bug triage for the maintainers. You may need to reproduce this with upstream's Firefox for upstream to take you seriously. Thank you. *** @Browser@ extensions being a big source of problems, please either try to reproduce your bug with a clean user or with your current user in safe mode, with the "@browser@ -safe-mode" command line before filing any bugs. If your bug disappears with a clean user or in safe mode, you might want to find which extension is responsible for it and file a bug to the appropriate package, bug tracking system, or author. If your previous @Browser@ installation pre-dates 3.0, you might have had problems since upgrading from one release to another can lack clean support for some features. Please try moving your ~/.mozilla/firefox directory out of the way to see if it helps with your issue. @Browser@ requires the loopback interface (lo) to be up and unfiltered to accept keyboard input and function correctly. Please make sure this is the case before filing any bugs. If you get crashes and none of the above hints helped, please also try to run "MOZILLA_DISABLE_PLUGINS=1 @browser@". If @Browser@ still crashes, please submit the crash to Mozilla, then visit `about:crashes` and paste the url to the corresponding submitted crash report in your bug report. Alternatively, please install the @browser@-dbgsym package and run @Browser@ under gdb with: gdb --args @browser@ [command-line-arguments] At the gdb prompt, type the following commands: set pagination off run bt full And attach the resulting backtrace to your bug report. If you see XML parsing errors, please make sure you kill all running @Browser@s and reload before filing any bugs.