[Bug 1025011] Re: HUD search causes firefox to crash

[Jens Berke]

I finally managed to reproduce the bug. The cause seems to be the drop
down list of the location bar in Firefox in combination with the Firebug
extension.

My Ubuntu setup: Ubuntu 12.04 32-bit, all latest packages installed as
of now, plus all latest firefox packages from precise-proposed as of
now.

Prerequisites:
1. Have a few URLs in your browser history. We need the drop down box of the location bar to be populated with some items.
2. Have the Firebug extension for Firefox installed (I have the current latest version 1.10.2)

Steps to reproduce:
1. Start Firefox. On my setup it starts with one tab showing a blank empty page. No need to open any web page.
2. Go into the location bar of Firefox and press ALT-DOWN. The drop down box of the location bar opens. No need to select anything there.
3. Press ALT to open the HUD and enter a search term which creates some results in the HUD.
4. Press ESC two times in the HUD to make it disappear,
5. Go into the location bar of Firefox again and press ALT-DOWN again. The drop down box of the location bar opens again. No need to select anything there.
6. Press ALT to open the HUD again and enter a search term which creates some results in the HUD.
7. Crash!

This reproduces the bug more than 95% of the time. In some rare case I
need three or four rounds of openening the location bar and the HUD, and
sometimes additionally going up and down the items in the drop down box
of the location bar with the arrow keys to get the crash.

If I disable Firebug everything works fine and I'm not able to reproduce
the bug then.

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Title:
  HUD search causes firefox to crash

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