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Firefox completly broken

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  • 1 ha questo problema
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  • Ultima risposta di FredMcD

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So I am not sure what happened but all of a sudden I am unable to open any site or go into options or view my bookmarks. firefox is always just a blank page. I am not sure how to get it working again.

Here is what i have tried so far

"refresh" firefox uninstall and reinstall firefox tried firefox in safe mode deleted profile in %appdata%/mozilla

no matter what I try I just see the attached screenshot when starting firefox. I would really appreciate any help I can get, currently stuck on using chrome :(

So I am not sure what happened but all of a sudden I am unable to open any site or go into options or view my bookmarks. firefox is always just a blank page. I am not sure how to get it working again. Here is what i have tried so far "refresh" firefox uninstall and reinstall firefox tried firefox in safe mode deleted profile in %appdata%/mozilla no matter what I try I just see the attached screenshot when starting firefox. I would really appreciate any help I can get, currently stuck on using chrome :(
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Some problems occur when your Internet security program was set to trust the previous version of Firefox, but no longer recognizes your updated version as trusted. Now how to fix the problem: To allow Firefox to connect to the Internet again;

  • Make sure your Internet security software is up-to-date (i.e. you are running the latest version).
  • Remove Firefox from your program's list of trusted or recognized programs. For detailed instructions, see

Configure firewalls so that Firefox can access the Internet. {web link}

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Hi Fred,

Thanks for you response, unfortunately that did not help fix the issue. I have completely disabled windows defender and do not use any other security software.

I might be wrong but I do not think it was update that broke firefox for me. one thing I did notice during the reinstallation, I got an error that said missing vcruntime140.dll. this happened everytime I try to reinstall.

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tried to reinstall again just to grab a screenshot of the error during install

attached is the screenshot of the error.

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Let’s do a full clean re-install;

Note: Firefox comes in three or more folders on all computers. They are;

Maintenance: (Programs Folder) <Windows Only> Firefox itself: (Programs Folder) And two folders in the profile of each user on the computer for each Firefox profile for that user.

If you remove the Firefox folder, the user profiles would not be affected.


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. 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