[HTTPS-Everywhere] HTTPS Everywhere firefox crash mystery

Yan Zhu yan at eff.org
Tue Jun 17 15:24:23 PDT 2014

Yan Zhu:
> Recently we've been getting a lot of bug reports about HTTPS Everywhere
> linked to Firefox crashes:
> * https://bugzilla.mozilla.org/show_bug.cgi?id=999434
> * https://trac.torproject.org/projects/tor/ticket/11700
> * https://github.com/EFForg/https-everywhere/issues/262
> I seem to see this happen infrequently when I use the stable release
> (3.5.1) but haven't encountered it in the development release
> (4.0dev.17), although others have. It's worth noting that some people
> are reporting crashes every day.
> This is at the top of my to-do list for the next release, but since I
> can't repro this bug myself, I was wondering if most people here are
> seeing this happen. In particular, it would help to know:
> * Whether it happens on 4.0dev.15 or later development releases.

Also, whether it happens on 4.0dev.14 or earlier. :)

FWIW, these reports started in mid-to-late April, which is around when
3.5 was released. I'm fairly sure that it was caused by something in the
huge upgrade between 3.4.5 and 3.5 (diff-minus-rulesets here:

Given that 3.5 is basically the same as the recent 4.0development
releases except for a smaller ruleset library, I would expect the issue
to be in at least 4.0development.15, 16, and 17. It was likely not
reported earlier because we simply don't have enough users on the
development branch.

The transition from 4.0dev.14 to 4.0dev.15 was significant because we
switched to a sqlite db for storing the rulesets. So if the issue is in
4.0dev.14 but not 4.0dev.15, that suggests it's related to the sqlite

> * Whether it happens in the Tor Browser Bundle.

> Thanks,
> Yan

Yan Zhu  <yan at eff.org>, <yan at torproject.org>
Staff Technologist
Electronic Frontier Foundation                  https://www.eff.org
815 Eddy Street, San Francisco, CA  94109       +1 415 436 9333 x134

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