See if you have any crash reports.

In the address bar, type about:crashes<enter>. Note: If any reports do not have BP in front of the numbers/letters, click it and select Submit.

Using your mouse, mark the most resent 7 - 10 crash reports, and copy them. Now go to the reply box below and paste them in.

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

Report ID Date Submitted bp-ba9ac106-4b9e-4701-9251-56c752150820 20/08/2015 18:51 bp-4df49ac5-97de-4e69-ad91-b556b2150820 20/08/2015 18:51 bp-e0423135-47e9-457b-9041-e50902150820 20/08/2015 18:50 bp-9c668a24-d502-4bfd-8e0e-1a5ac2150820 20/08/2015 18:49 bp-76e06e3e-cefd-47c3-8c08-c21a22150820 20/08/2015 18:49 bp-544ada18-60b8-4486-8d96-2ef882150820 20/08/2015 18:46 bp-3055354a-53c5-4e82-9be4-6bb2a2141211 11/12/2014 1

The crash report flagged these programs;

Product Firefox Version 34.0

Release Channel OS Windows NT OS Version 6.1.7601 Service Pack 1

https://support.mozilla.org/en-US/kb/update-firefox-latest-version 40

Signature npswf32_15_0_0_246.dll

Signature hang

Process Type plugin Shockwave Flash Version:15.0.0.246

NPSWF32_15_0_0_246.dll = Shockwave Flash = Adobe Systems

Security Issue: Update your Flash Player Version 18.0.0.232
https://www.adobe.com/products/flashplayer/distribution3.html Note: Windows users must download the “Internet Explorer” and “Plugin-based browsers” installers.

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