If you have submitted crash reports then please post the IDs of one or more recent crash reports that have a "bp-" prefix:

• bp-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

You can find the IDs of the submitted crash reports on the about:crashes page.

• You can open the about:crashes page via the location bar, like you open a website, or open the crash reports page via "Help > Troubleshooting Information".

See:

• http://kb.mozillazine.org/Mozilla_Crash_Reporter
• https://support.mozilla.org/kb/Mozilla+Crash+Reporter

• bp-3e0250a4-f0f4-4cd5-83a5-6b7922140225 26/2/14 7:40 AM
• bp-0f251256-3e4c-472a-bb3c-efcf32140225 26/2/14 12:07 AM
• bp-8766903b-d310-4a05-8467-250de2140225 25/2/14 8:55 PM
• bp-60511212-91ed-4aa0-99ce-296852140225 25/2/14 8:26 PM
• bp-1df5585b-9bb1-4912-91bf-84e702140225 25/2/14 6:58 PM
• bp-5b6d1478-ed3c-48ae-9941-e78742140225 25/2/14 6:57 PM
• bp-b82fa0ff-c1f4-450b-a92d-4101e2140225 25/2/14 6:46 PM
• bp-b2d3e2fe-e756-4c5f-9f24-e15252140225 25/2/14 6:33 PM
• bp-689e997c-f957-44ac-aec1-3b2d32140225 25/2/14 6:23 PM
• bp-42895294-6b28-4333-a786-6075c2140225 25/2/14 5:31 PM
• bp-8497ddb8-64ef-4d87-84c5-6e2962140225 25/2/14 5:30 PM
• bp-df77facb-d513-4d67-89cf-32cd22140225 25/2/14 5:18 PM
• bp-202fa85f-7d0d-4d8d-9ce0-74ebb2140225 25/2/14 4:48 PM
• bp-cea0d485-90a1-4770-97e0-928812140225 25/2/14 3:09 PM
• bp-63afb7bd-64e1-4e34-9952-4fa7d2140225 25/2/14 1:44 PM
• bp-91c375bc-6552-4f37-876c-39da72140225 25/2/14 1:43 PM
• bp-ffc124ac-93f7-4cac-83b6-a18fe2140225 25/2/14 1:43 PM
• bp-b775f5e9-21c3-448f-81c4-aef5a2140225 25/2/14 1:43 PM
• bp-1243fdcd-e9bf-4640-8164-7f0422140225 25/2/14 12:06 PM

Try to check for corrupted and duplicate fonts and other font issues:

• http://www.thexlab.com/faqs/multipleappsquit.html - Font Book 2.0 Help: Checking for damaged fonts
• http://www.creativetechs.com/iq/garbled_fonts_troubleshooting_guide.html

I don't have any corrupted or duplicate fonts.