Currently, the ASan reporter (added in bug 1386304) only reports issues when the browser is started. Since the issues are stored in /tmp, there is a high risk of losing crash information if the user doesn't restart their browser before rebooting. For tab crashes, we could instead use an observer to listen for the "ipc:content-shutdown" event and look for the "abnormal" key (thanks :ted for helping me to figure this out). This would allow us to call the reporter routine every time a tab crashes and submit those crashes right away. I already got this working locally, so patch coming up shortly :)

Comment on attachment 8933613 [details] Bug 1422269 - Allow asan-reporter to report crashed tabs immediately. https://reviewboard.mozilla.org/r/204556/#review210216 Thanks! I didn't even know this thing existed. Just some small suggestions - see below. ::: browser/extensions/asan-reporter/bootstrap.js:61 (Diff revision 1) > + // Install a handler to observe tab crashes, so we can report those right > + // after they happen instead of relying on the user to restart the browser. > + this.TabCrashObserver.init(); This can just be: `TabCrashObserver.init();`, which I think is more idiomatic. Just to ensure this add-on fully removes itself if it's disabled at runtime, can you please add a `TabCrashObserver.uninit()` as well to remove the observer, and call that from the `shutdown` function?

Comment on attachment 8933613 [details] Bug 1422269 - Allow asan-reporter to report crashed tabs immediately. https://reviewboard.mozilla.org/r/204556/#review210656 As discussed on IRC, since this is implemented as a system addon, there is no way or need to disable it, so skipping the shutdown parts. The other change is implemented as requested, carrying over r+.

Pushed by choller@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/8173679f7bcb Allow asan-reporter to report crashed tabs immediately. r=mconley