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MOZGLUE.dll is Missing or Not Found in Firefox: 5 Ways to Fix it
Whitelisting Mozilla Firefox is the quickest solution
4 min. read
Published onSeptember 6, 2024
published onSeptember 6, 2024
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For fixing DLL errors, we recommend Fortect:
Fortect will search for an intitial version of your missing, corrupted or damaged DLL files that cause problems to your Windows OS and will replace it. Here is how to find them in 3 easy steps:
If you recently launched Mozilla Firefox and got an error message saying,The program can’t start because mozglue.dll is missing from your computer. Try reinstalling the program to fix this problem, it’s a common problem.
Themozglue.dllDLL file is, by default, stored in Firefox’s folder under one of the following paths:C:\Program Files\Mozilla FirefoxC:\Program Files (x86)\Mozilla Firefox
As for themozglue.dllmissing error in Windows, it usually appears when you inadvertently delete the DLL, a security program or antivirus blocks access to it, or there are issues with the current version of Firefox.
What can I do if mozglue.dll is missing?
1. Use a DLL repair tool
The easiest solution whenmozglue.dllis not found is to use atop-rated DLL repair tool!
These will scan the PC, identify the missing DLLs, fetch them from their database, and add the DLLs to the relevant directories.
2. Eliminate conflicts triggered by third-party antiviruses
In 4 out of 5 cases of the missingmozglue.dllfile, the installed third-party antivirus was to blame. To verify this,boot Windows into Safe Modeor safelyperform a clean boot, and verify whether Firefox now runs. If it does, an installed third-party antivirus or security software is blocking the DLL file.
In recent times, we have seen such errors being triggered byAVG,Malwarebytes, andTrend Micro Application Control, amongst others, especially after an update to Firefox. In such a case, you have the following options:
3. Install a newer/older version of the affected program
When Windows can not findmozglue.dllafter an update to Firefox, it could be due to a bug in the currently installed version. Antivirus solutions sometimes block apps for this reason!
To fix this, first remove Firefox using aneffective uninstaller software> verify whether there’s an update available forMozilla Firefoxon theofficial websiteand install it > if a newer version is not available, download anolder version of Firefox from the directory.
Besides, if you see themozglue.dllerror withThunderbird, simply reinstalling it from thededicated websitewill do the trick without leading to data loss!
4. Perform a system restore
If a recent change to the PC, say installing a new app, triggered themozglue.dllFirefox error, performing a system restore will fix things. All you have to do is pick arestore pointcreated before the issue first appeared!
5. Contact support
When nothing else works, the last option is tocontact Mozilla support. Apprise them of the issue and share details of any third-party antiviruses installed on the PC, and they should get back with a response.
If the underlying cause lies with Mozilla Firebox, it should be fixed in the subsequent updates.
Remember,mozglue.dllis not malware but a legitimate file developed by Mozilla and used by a wide array of its products, including Firefox and Thunderbird. So, your antivirus blocking it should be a call for concern and immediate resolution.
In the meanwhile, you can use anotherexpert-recommended browseron your PC!
If you know of more solutions for the issue, share them with our readers in the comments section.
More about the topics:DLL errors,DLL issues,Firefox errors
Kazim Ali Alvi
Windows Hardware Expert
Kazim has always been fond of technology, be it scrolling through the settings on his iPhone, Android device, or Windows PC. He’s specialized in hardware devices, always ready to remove a screw or two to find out the real cause of a problem.
Long-time Windows user, Kazim is ready to provide a solution for your every software & hardware error on Windows 11, Windows 10 and any previous iteration. He’s also one of our experts in Networking & Security.
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Kazim Ali Alvi
Windows Hardware Expert
Kazim is specialized in hardware devices, always ready to remove a screw or two to find out the real cause of a problem.
