Product Firefox Release Channel release Version 63.0.3 Build ID 20181116104104 OS Linux OS Version 0.0.0 Linux 4.19.4-arch1-1-ARCH #1 SMP PREEMPT Fri Nov 23 09:06:58 UTC 2018 x86_64

bp-2351dc3c-c3f0-4b04-954a-a19a10181130 Signature: nsStyleImageRequest::Resolve

This is for Sumo's Related Bugs 1454140 RESOLVED FIXED crash at null in [@ nsStyleImageRequest::Resolve]

1382190 VERIFIED FIXED Stylo: multiple nsStyle* crashes when starting firefox on Windows 32-bit

stilvoid said

This latest crash also happens in safe mode and now I can't start firefox at all.

Do you mean Firefox won't start at all? Even in Safe Mode?

Let’s do a full clean re-install;

Download Firefox For All languages And Systems {web link}

Save the file. Then Close Firefox.

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

Windows: C:\Program Files C:\Program Files (x86)

Mac: Open the "Applications" folder. https://support.mozilla.org/en-US/kb/how-download-and-install-firefox-mac

Linux: Check your user manual. If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it. See Install Firefox on Linux; https://support.mozilla.org/en-US/kb/install-firefox-linux

If you downloaded and installed the binary package from the Firefox download page, simply remove the folder Firefox in your home directory. http://www.mozilla.org/firefox#desktop ++++++++++++++++++++++++++++ Look for, and remove any Mozilla or Firefox program folders. Do not remove the Mozilla Thunderbird folder if there is one.

Do Not remove any profile folders.

After rebooting the computer, run a registry scanner if you have one. Then run the installer. +++++++++++++++++++++++++++ If there is a problem, start your Computer in safe mode and try again.

http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode This shows how to Start all Computers in Safe Mode; Free Online Encyclopedia

I tried a "refresh firefox" but was still unable to start Firefox but have since rebooted my machine and Firefox now starts (but lost all my tabs etc.)

If I get this again, I'll report back :)