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Cannot launch FF versions 43+ because "mozglue.dll is missing" - when it's not

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  • 2 gặp vấn đề này
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  • Trả lời mới nhất được viết bởi FredMcD

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I have been happy with FF v43 until I decided to update to v50. It installed but would not launch, saying "mozglue.dll" was missing. I found on Google that some other users had the same problem, with some advice that AVG might be the problem. I found the mozglue.dll was in fact in Program Files - and repeated uninstalls and reinstalls of FF v50 with AVG also uninstalled made no difference. I (mistakenly) found that reusing my original install file of v43 then produced the same result - until I discovered that FF was updating my v43 to v47 within seconds of launching. I finally beat FF automatic updating to get to the Option "do not update," so I have a working, albeit old version of Firefox. Any advice would be welcome - while I fiddle with various workarounds of annoying warnings about my FF being out of date and its knock-on affect on add-ons etc. PS: I am very happily (and stubbornly) Windows XP Professional 64-bit sp2, but I suggest it's not my operating system at fault because other sufferers use a variety of OS. Thanks, Kevin in the UK

I have been happy with FF v43 until I decided to update to v50. It installed but would not launch, saying "mozglue.dll" was missing. I found on Google that some other users had the same problem, with some advice that AVG might be the problem. I found the mozglue.dll was in fact in Program Files - and repeated uninstalls and reinstalls of FF v50 with AVG also uninstalled made no difference. I (mistakenly) found that reusing my original install file of v43 then produced the same result - until I discovered that FF was updating my v43 to v47 within seconds of launching. I finally beat FF automatic updating to get to the Option "do not update," so I have a working, albeit old version of Firefox. Any advice would be welcome - while I fiddle with various workarounds of annoying warnings about my FF being out of date and its knock-on affect on add-ons etc. PS: I am very happily (and stubbornly) Windows XP Professional 64-bit sp2, but I suggest it's not my operating system at fault because other sufferers use a variety of OS. Thanks, Kevin in the UK

Giải pháp được chọn

Separate Security Issue: Update your Flash Player Note: Windows users should download the active_x for Internet Explorer. and the plugin for Plugin-based browsers (like Firefox).

Note: Windows 8 and Windows 10 have built-in flash players and Adobe will cause a conflict. Install the plugin only. Not the active_x.

Flash Player Version: 23.0.0. 207 Flash Player (Linux) Version 11.2. 202.644

https://get.adobe.com/flashplayer/ Direct link scans current system and browser Note: Other software is offered in the download. <Windows Only>

https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) Note: Other software is offered in the download. <Windows Only>


See if there are updates for your graphics drivers https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

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Giải pháp được chọn

Separate Security Issue: Update your Flash Player Note: Windows users should download the active_x for Internet Explorer. and the plugin for Plugin-based browsers (like Firefox).

Note: Windows 8 and Windows 10 have built-in flash players and Adobe will cause a conflict. Install the plugin only. Not the active_x.

Flash Player Version: 23.0.0. 207 Flash Player (Linux) Version 11.2. 202.644

https://get.adobe.com/flashplayer/ Direct link scans current system and browser Note: Other software is offered in the download. <Windows Only>

https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) Note: Other software is offered in the download. <Windows Only>


See if there are updates for your graphics drivers https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

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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. If you downloaded and installed the binary package from the Firefox download page, simply remove the folder Firefox in your home directory.

Do Not remove the profiles folder.

Look for, and rename any Mozilla or Firefox program folders by adding .old to them. Do not rename the Mozilla Thunderbird folder if there is one.

After rebooting the computer, run a registry scanner if you have one. Then run the installer. If all goes well, remove the OLD folders when you are done.


If there is a problem, start your Computer in safe mode and try again.

Starting The Computer In Safe Mode;
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