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Firefox crashes on Startup (Mac OS High Sierra 10.13.5)

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  • 1 has this problem
  • Last reply by FredMcD

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My Firefox keeps crashing on startup, and when I try to enter into the preferences it crashes.

Crash ID bp-9a52e399-447e-48b0-836e-003350190219

Haven't tried a fresh install yet, but will update this post once completed.

All Replies (2)

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Product Firefox Release Channel release Version 65.0.1 Build ID 20190211233335 (2019-02-11) OS OS X 10.13 OS Version 10.13.5 17F77

bp-9a52e399-447e-48b0-836e-003350190219 Signature: nsDocLoader::QueryInterface


Uptime 8 seconds

This is for Sumo's Related Bugs 701435 NEW --- Firefox Crash [@ nsDocLoader::QueryInterface(nsID const&, void**) ]

333050 RESOLVED WORKSFORME intermittent crashes going back to tinderbox page after using popup iframe [@ nsDocLoader::QueryInterface]

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simbamai said

Haven't tried a fresh install yet

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) Note: Check Both Folders

Mac: Open the "Applications" folder.

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;

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 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. This shows how to Start all Computers in Safe Mode; Free Online Encyclopedia