Hello, no crash report I'm afraid! But first Try Firefox Safe Mode to see if the problem goes away. Firefox Safe Mode is a troubleshooting mode that temporarily turns off hardware acceleration, resets some settings, and disables add-ons (extensions and themes).

If Firefox is open, you can restart in Firefox Safe Mode from the Help menu:

• Click the menu button , click Help and select Restart with Add-ons Disabled.

If Firefox is not running, you can start Firefox in Safe Mode as follows:

• On Windows: Hold the Shift key when you open the Firefox desktop or Start menu shortcut.
• On Mac: Hold the option key while starting Firefox.
• On Linux: Quit Firefox, go to your Terminal and run firefox -safe-mode
  (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)

When the Firefox Safe Mode window appears, select "Start in Safe Mode".

If the issue is not present in Firefox Safe Mode, your problem is probably caused by an extension, theme, or hardware acceleration. Please follow the steps in the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article to find the cause.

To exit Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again. xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

If Safe Mode doesn't help, please follow the steps below to provide us crash IDs to help us learn more about your crash.

1. Enter about:crashes in the Firefox address bar and press Enter. A Submitted Crash Reports list will appear, similar to the one shown below.
2. Copy the 5 most recent Report IDs that start with bp- and then go back to your forum question and paste those IDs into the "Post a Reply" box.

Note: If a recent Report ID does not start with bp- click on it to submit the report.

(Please don't take a screenshot of your crashes, just copy and paste the IDs. The below image is just an example of what your Firefox screen should look like.)

Thank you for your help!

More information and further troubleshooting steps can be found in the Troubleshoot Firefox crashes (closing or quitting unexpectedly) article.

bp-045890bb-0b77-4b10-ad7a-250062150606 bp-ddbbed89-613c-4b39-b33d-e9aac2150606 bp-f5c58889-eb65-4176-9c84-c9d6a2150606 bp-4dd88e56-31c5-4fd1-8747-f111c2150606 bp-40224553-b309-47a5-97d8-ba8572150606

That is a problem with your Norton software.

• Firefox 38.0.5 Crash Report [@ symhtml.dll@0x7cedd ]

You can use Norton Live update to check for updates of your Norton software. Keep updating until no more updates are found.

Try to disable Norton extensions/toolbars in Firefox.

• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

Download the current full installers for your Norton programs and save them.

Download and run the Norton Removal Tool to uninstall your Norton product

After rebooting the computer, run a registry scanner. Then run the installers.

https://support.norton.com

http://community.norton.com/