The crash report shows;

Signature msvcr120.dll

What were you doing at the time?

Please post the crash reports for the last 5 days.

Some added toolbar and anti-virus add-ons are known to cause Firefox issues. Disable All of them.

Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac Options) key, and then starting Firefox. Is the problem still there?

Hello , the crash is fixed in 38.0 (beta version now, stable release in 12 May 2015) - Bug 1102612

(status-firefox37:wontfix, status-firefox38: fixed)

thank you

Moskigirl said

Hello, I'm having a problem with Firefox: it crashes all the time. Here's the two last crash reports: bp-172c899f-5e3f-49bd-a2c1-3058b2150411 11/04/2015 11:24 bp-9d6582d8-3214-4855-8800-6e9372150411 11/04/2015 10:59 I really like firefox and I hope I won't have to move to another browser. Thank you in advance.

FredMcD said

The crash report shows; Signature msvcr120.dll

---

What were you doing at the time?

Please post the crash reports for the last 5 days.

Some added toolbar and anti-virus add-ons are known to cause Firefox issues. Disable All of them.

Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac Options) key, and then starting Firefox. Is the problem still there?

I was watching videos on youtube, downloading custom content for the Sims... and that's pretty much it.

My laptop is pretty new (less than 1 month) and this problem appeared right away after installing Firefox for the 1st time. I don't have toolbars. About the antivirus add-on I have Avira Browser Safety. Should I remove it?

Here are the crash reports:

bp-3ebe043c-ac36-4579-b7af-c39872150412 12/04/2015 23:35

bp-172c899f-5e3f-49bd-a2c1-3058b2150411 11/04/2015 11:24

bp-9d6582d8-3214-4855-8800-6e9372150411 11/04/2015 10:59

bp-9c13b674-b7a8-49c8-9eba-fb1302150406 07/04/2015 01:16

c430d986-7f0a-443e-a331-677e2ab86ee4 06/04/2015 19:39

d45ac177-e3da-481a-9acb-5038ef0e3b4f 06/04/2015 01:09

bp-769e1ea3-5e93-45f3-bdf9-590312150405 05/04/2015 21:08

bp-7749d3ab-1ce9-4eda-afe8-08d2d2150401 02/04/2015 00:08

I'll try using Firefox in SafeMode to see if the problem persists.

Thank you in advance for your help.

msmpeg2vdec.dll = Microsoft DTV-DVD Video Decoder

Perform a System File Check to fix corrupted system files http://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.html

See if there are updates for your graphics drivers https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

@FredMcD

That link to perform a System Check is for W7. Will it work with W8?

I checked the updates, everything is up to date.

Sorry, I'm not sure. Check for more help on that here; http://support.microsoft.com