Try running firefox in safe mode. You can start Firefox in Safe Mode in two ways

Hold the SHIFT key while double clicking the Firefox icon in your desktop Press the Windows key + R (open the Run command) and type firefox -safe-mode

The crash report flagged these programs;

libwep_ff.dylib = No Information Found

libsystem_kernel.dylib =  ? Word for Mac

Related Bugs 1172196 NEW --- crash in nsACString_internal::Assign(char const*, unsigned int, mozilla::fallible_t const&) | nsACString_internal::Assign(char const*) | nsXULAppInfo::GetAppBuildID(nsACString_internal&)

For some time now, a lot of Mac’s with Microsoft programs have been crashing. Check with Microsoft / Mac support sites.

http://www.clamxav.com/ free malware scanner for Mac OS X https://discussions.apple.com/docs/DOC-3291

Hello, I tried opening it in safe mode and it still did not work. it crashed when i opened it up. any other ideas?

Download Firefox Full Version For All languages And Systems {web link} Save the file. Then;

Using your file browser, open the Programs Folder on your computer.

Windows: C:\Program Files C:\Program Files (x86) Mac: Open the "Applications" folder. Linux: Check your user manual.

• Linux: If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see Install Firefox on Linux. If you downloaded and installed the binary package from the Firefox download page, simply remove the folder Firefox in your home directory.

Look for, and rename any Mozilla or Firefox folders by adding .old to them.

Now run the full installer. If all goes well, remove the OLD folders when you are done.

Do you know to what software the libwep_ff.dylib file belongs?

Is that part of some security software?

You can do a search in the Finder to find its location.