CrashReports.jsm is old and janky (literally - it uses synchronous I/O). Users of CrashReports.jsm should be refactored to use Services.crashes from bug 875562 and CrashReports.jsm should be deleted once no in-tree consumers remain.

I started down this road for a few minutes as part of working on the blocking bug. But this work is not blocking getting that bug landed, so I quickly abandoned it. about:crashes could use a lot of love. For one, the page title says "submitted crash reports" even though it mixes pending and submitted. We should throw a few section headers in there to differentiate between submitted and pending. I started this work but stopped short because it wasn't critical to the other bug. We'll also need a delete API on Services.crashes. I'll add that in the blocking bug - it's trivial enough to implement.

The "pending crashes are hard to distinguish" thing is bug 512479.

The requisite parts of bug 875562 have landed and this bug should be unblocked from implementation. I'm putting this in the mentored bugs pool if anyone wants to have a go at it. There's no docs on MDN yet. You'll be using the new code at https://hg.mozilla.org/mozilla-central/file/default/toolkit/components/crashes/CrashManager.jsm to read crash data. See the existing patch (which no longer works) for inspiration.

Can I take up this bug? I have mozilla-central downloaded, I am new and interested to work on it.

Yes, you can have it. I'm on a business trip to Europe until September 2. If you need more information, I encourage you to ping bsmedberg, as I may not respond to bug updates promptly.