Mozilla Firefox crash when trying to use HUD

When I enable HUD in Mozilla Firefox and started typing it crashed unexpectedly and then mozilla crash report appers.

Report Contents:
Add-ons: <email address hidden>:1.19.1,{ea4637dc-e014-4c17-9c2c-879322d23268}:1.0.4,<email address hidden>:14.0.1,<email address hidden>:14.0.1,<email address hidden>:14.0.1,<email address hidden>:3.2.5,<email address hidden>:2.1.1,{19503e42-ca3c-4c27-b1e2-9cdb2170ee34}:1.4.7,{972ce4c6-7e08-4474-a285-3208198ce6fd}:14.0.1,<email address hidden>:0.2.4,<email address hidden>:1.10.0
BuildID: 20120713224758
CrashTime: 1343290438
EMCheckCompatibility: true
FramePoisonBase: 00000000f0dea000
FramePoisonSize: 4096
InstallTime: 1342604902
Notes: OpenGL: Tungsten Graphics, Inc -- Mesa DRI Intel(R) Sandybridge Desktop x86/MMX/SSE2 -- 3.0 Mesa 8.0.2 -- texture_from_pixmap

ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384}
ProductName: Firefox
ReleaseChannel: release
SecondsSinceLastCrash: 373
StartupTime: 1343290078
Theme: classic/1.0
Throttleable: 1
URL: https://bugs.launchpad.net/unity/+filebug
Vendor: Mozilla
Version: 14.0.1

This report also contains technical information about the state of the application when it crashed.

It happens every time I try to use HUD, I recorded it: http://youtu.be/dweImpJ932I
Bests, Filip