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  • Solved

Almost every site is broken in Firefox 77

I just upgraded to Firefox 77, x64, Windows 10 2004. Firefox 76 already broke LockWise - https://support.mozilla.org/en-US/questions/1287008 Now Firefox 77 breaks 99% of … (read more)

I just upgraded to Firefox 77, x64, Windows 10 2004.

Firefox 76 already broke LockWise - https://support.mozilla.org/en-US/questions/1287008

Now Firefox 77 breaks 99% of all websites. (See attached screenshot.) www.example.com www.google.com www.wikipedia.org etc

Somehow, support.mozilla.org works, UNTIL I try to log in.

I've tried incognito mode, safe mode, etc. When I change charset of the page, the text displays differently, but it's still a useless mishmash.

--- BUT --- when I open developer tools, click the HTML request and click the Response tab, the HTML renders correctly there.

Asked by milan2 4 days ago

Answered by cor-el 2 days ago

  • Solved

MAC Your Firefox profile cannot be loaded. It may be missing or inaccessible (Already deleted Profiles file/folder and cleared cache, no avail). how to fix?

Alright, I use Firefox like normal, but sometime today it stopped working, I get "Your Firefox profile cannot be loaded. It may be missing or inaccessible" error, I looke… (read more)

Alright, I use Firefox like normal, but sometime today it stopped working, I get "Your Firefox profile cannot be loaded. It may be missing or inaccessible" error, I looked it up using safari, followed every possible interpretation of the instructions to no avail, I deleted the profiles folder and file, in both cache, and application support, on both my user folder and global HDD folder, no fix whatsoever, I don't know why this isn't working (yes I checked the hidden files, I searched my entire HDD and found no results for anything remotely named "Profile"/"Profiles" and I don't know what else to say.

I have checked: Application support (on every user) & Cache (on every user)

I don't know what's up, I also reinstalled Firefox after deleting everything related to it and I just don't know.

Asked by Phayden 3 weeks ago

Answered by Phayden 2 weeks ago

  • Solved

Firefox won't start - Was previously OK

Hi All, I have only recently installed Firefox for a specific purpose, have no plugins installed, just the basic program with about 3 bookmarks, that's it. Was all workin… (read more)

Hi All, I have only recently installed Firefox for a specific purpose, have no plugins installed, just the basic program with about 3 bookmarks, that's it. Was all working OK until yesterday when it just wont boot. I have tried everything I can think of, so far:

Have tried removing (using app cleaner) and re installing - No joy

Tried going to profile manager through terminal - deleted and created profiles but still no joy

Tried deleting app again with app cleaner and reinstalling previous version - no go

Tried starting app in safe mode (shift key) - no go.

Looking for suggestions as I need to use Firefox for just 1 old website that seems to not work on anything else!

I'm running a Macbook pro Early 2015, Mojave 10.14.6

Asked by soundengineer 1 month ago

Answered by soundengineer 1 month ago

  • Solved

upgrade from 74 to 75 the browser won't go to any site. The lovely new big address bar shows up, but that's about it. Other browsers no problem.

So I generally keep Firefox up to date, letting the system manage itself, but this time I have had to disable this update. When I update, either through the automatic u… (read more)

So I generally keep Firefox up to date, letting the system manage itself, but this time I have had to disable this update. When I update, either through the automatic updates, or even from a fresh install of 75 (or beta 76) the browser starts, I see the lovely new address bar, albeit blank, and the browser just hangs right there. I can type in the nifty new bar, but nothing happens, no browsing to a site, no opening configs, nothing.

I have this issue on windows 7, 8 and 10 machines, so it's not an OS issue.

When an update does happen it chews up my profiles too and I have to end up rebuilding those. Only when I go back to 74 does Firefox work again.

I'm at a bit of a loss here.

Asked by Mark C 1 month ago

Answered by philipp 1 month ago

  • Solved

Firefox crashes. Couldn't load XPCOM. Clean reinstall didn't help

Firefox crashes. Couldn't load XPCOM. Clean reinstall didn't help. Scanned with antivirus - no malwares. Just found and deleted avery file\folder with "Mozilla" in it, cl… (read more)

Firefox crashes. Couldn't load XPCOM. Clean reinstall didn't help. Scanned with antivirus - no malwares. Just found and deleted avery file\folder with "Mozilla" in it, cleaned the regystry - no luck... please help me

Asked by link_777 3 months ago

Answered by FredMcD 3 months ago

  • Solved

Blank screen, can not load websites, or view any firefox options (after vc runtime error) how to fix?

How it happened: 1. I installed Anaconda(python3.7) and Visual Studio 2015 (to get the required C++ for TensorFlow) 2. Decided to uninstall Anaconda and Visual Studio 20… (read more)

How it happened: 1. I installed Anaconda(python3.7) and Visual Studio 2015 (to get the required C++ for TensorFlow) 2. Decided to uninstall Anaconda and Visual Studio 2015 and restarted which is when firefox gave the error vcruntime140_1. dll was not found. 3. I downloaded and installed vc_redist.x64 and restarted 4. Firefox does not give an error anymore but no websites appear (just bank screen). I can see the firefox dropdown tab for options, but clicking options does nothing


What I've tried: 1. Uninstalled firefox using an uninstaller that removes residual files 2. Re-installing firefox 3. Running firefox in safemode and clicking 'restore' as well as trying it in safemode


Chrome is working with no issues, but I prefer firefox.

Asked by meiica.resident 2 months ago

Answered by meiica.resident 2 months ago

  • Solved

FF takes 2 or more min. to initially load in Win10 1903 (was worse in 1909), loads fast after

Have re-installed FF several times, no improvement in initial startup time. Often have to initiate as admin. 73.0.1 (32-bit) This HP Elitebook 840 G3 running Windows … (read more)

Have re-installed FF several times, no improvement in initial startup time. Often have to initiate as admin.

73.0.1 (32-bit)

This HP Elitebook 840 G3 running Windows 10 v 1903 64-bit. Have to be careful re-installing as FF wants to make my extensions in GERMAN! Are OK now (see attachment). Have test-removed AdGuard, NO difference, so added it back.

NOTE: screenshot is long out-of-date: AdNauseum removed long before this issue started

Asked by xlcrlee 3 months ago

Answered by xlcrlee 3 months ago

  • Solved

Version issue connecting Android to Firefox

Hi. I use Firefox from many years. Today I was trying to inspect a my web page which looks strange in my Firefox for Android but I just can't. In my desktop I have Firefo… (read more)

Hi. I use Firefox from many years. Today I was trying to inspect a my web page which looks strange in my Firefox for Android but I just can't. In my desktop I have Firefox 73.0.1 and in my Android phone I have Firefox 68.5.0. If I try to connect I get a message which tells to update Firefox from 68.5 to 71.0 (minimum supported version) but I can't find this version anywhere. I have installed Firefox Nightly for Developer in my phone but now the problem is that the version is too recent... What should I do?

Asked by Marco 3 months ago

Answered by cor-el 3 months ago

  • Solved

Firefox stops installing and says it was interrupted?

The installation progress bar stops at about 75% and then a message appears saying, ‘Hmm. For some reason, we could not install Firefox. Choose OK to start again’. BUT it… (read more)

The installation progress bar stops at about 75% and then a message appears saying, ‘Hmm. For some reason, we could not install Firefox. Choose OK to start again’. BUT it won’t start again and if I try to download from your website, the whole process happens again. This is very frustrating as many of the websites I use, are linked to Firefox. Please advise.

Asked by Smike47 3 months ago

Answered by cor-el 3 months ago

  • Solved

Virus in distibutive - Trojan.Inject.bcbj

Hi all For security reasons, all new FF distributions are tested. When checking the distribution kit version 68.5.0esr (exe for x86 and x64) - the antivirus software "Vir… (read more)

Hi all

For security reasons, all new FF distributions are tested. When checking the distribution kit version 68.5.0esr (exe for x86 and x64) - the antivirus software "VirusTotal" detected Trojan.Inject.bcbj. FortiSandbox also scolded the distribution on x86 - saying that it deleted the file "% programfiles (x86)% \ google \ update \ 1.3.33.17 \ googlecrachhandler.exe" - its installation is undesirable in the ESR version.

Asked by kittyfriend 3 months ago

Answered by kittyfriend 3 months ago

  • Solved

Firefox error message: A required privilege is not held by the client.

I tried to open Firefox yesterday and got the following error message: Mozilla-Firefox 64bit. A required privilege is not held by the client. I uninstalled Firefox thinki… (read more)

I tried to open Firefox yesterday and got the following error message:

Mozilla-Firefox 64bit. A required privilege is not held by the client.

I uninstalled Firefox thinking that reinstalling would fix the problem but when I attempted to reinstall Firefox I got the same error message.

This is on a Windows 10 64bit machine.

Asked by Eddie 4 months ago

Answered by Eddie 4 months ago

  • Solved

How to open fresh install of Firefox when it tells you there is already a version open?

Hi, I have spent hours dealing with this issue. I hope someone is able to assist me. I ran into some issues with Firefox so I went to reinstall it but I am unable to ope… (read more)

Hi,

I have spent hours dealing with this issue. I hope someone is able to assist me.

I ran into some issues with Firefox so I went to reinstall it but I am unable to open it. I noticed even after uninstalling it it was still showing up when I do control/alt/del. I have tried to close it but it won't close. I have tried almost every option I can find online to force close it.

My issue is when trying to open my new version of Firefox I am told I have a version running and must close it.

I have tried to delete it I don't know how many times.

I am running Windows 10.

Is someone able to assist me? It would greatly be appreciated.

I hope someone can help me as this is getting very frustrating.

Thank you .

Asked by gwshaw46 5 months ago

Answered by gwshaw46 5 months ago

  • Solved

firefox crashes at startup

Overnight (I changed nothing, but microsoft rebooted my computer and I don't see any new files installed or updates) Firefox will not work. I can see it start up in task … (read more)

Overnight (I changed nothing, but microsoft rebooted my computer and I don't see any new files installed or updates) Firefox will not work. I can see it start up in task manager (two processes) but within 1 second both are gone. I've tried uninstalling and reinstalling firefox. Same problem. This is Windows 10 v 1909. Firefox will not start in safe mode. I cannot find any crash files (in the past month).

Asked by Matt 6 months ago

Answered by Matt 5 months ago

  • Solved
  • Archived

Dropdown Menus in Firefox Wont Stay Open

Recently I've been having trouble with the dropdown menus in Firefox, such as the History and Bookmarks menu in the tool bar and the right-click menu. Intermittently when… (read more)

Recently I've been having trouble with the dropdown menus in Firefox, such as the History and Bookmarks menu in the tool bar and the right-click menu. Intermittently when I open the menus they close within a second or two without me doing anything. This only happens in the Firefox window, all of my other apps and browsers are fine.

I'm running on a Macbook Pro with OSX 10.15.1 and Firefox 70.0.1. I've restarted Firefox and it fixes the problem for a short time then the problem returns. I've cleared my History, including Caches and Cookies, reinstalled Firefox, restarted my computer and tried disabling my add-ons. The issue keeps coming back.

Asked by Lunar 6 months ago

Answered by Lirui 5 months ago

  • Solved
  • Archived

current update prevents firefox from starting

After applying the current update, Firefox will not launch. It was set to run as administrator. However, after clicking YES to the Windows10 pop-up prompt to allow Fire… (read more)

After applying the current update, Firefox will not launch. It was set to run as administrator. However, after clicking YES to the Windows10 pop-up prompt to allow Firefox to run as administrator, the Windows 10 pop-up prompt keeps coming up and Firefox will not launch. I cannot uncheck the RUN AS ADMIN from the PROPERTIES window. Help please … ASAP!!

Asked by vj000000 6 months ago

Answered by vj000000 6 months ago

  • Solved
  • Archived

Firefox crashes

Firefox won't even start. I tried 'safe mode' but that didn't work either. I also tried to get the 'crash report' but I received a note indicating location not availabl… (read more)

Firefox won't even start. I tried 'safe mode' but that didn't work either. I also tried to get the 'crash report' but I received a note indicating location not available. When I try the install I get, 'Windows cannot access the specified device, path, or file. You may not have the appropriate permissions to access the item'.

Asked by rpiz24112 8 months ago

Answered by rpiz24112 8 months ago

  • Solved
  • Archived

<window id="main-window

Hello everybody, i have just finished a big long windows update and since then i cannot open the firefox browser. Even if i download a new firefox version i cannot open i… (read more)

Hello everybody, i have just finished a big long windows update and since then i cannot open the firefox browser. Even if i download a new firefox version i cannot open it: In the 2 instances, a window pops up with this message "<window id="main-window". Thank you for your time and your help. Patrick

Asked by Pat777 11 months ago

Answered by cor-el 11 months ago

  • Solved
  • Archived

Firefox won't load pages

After Firefox updated to 67 it won't load any pages. Chrome and Opera both work normally. I went through all the recommendations including the firewall changes, disabli… (read more)

After Firefox updated to 67 it won't load any pages. Chrome and Opera both work normally. I went through all the recommendations including the firewall changes, disabling IPv6, etc. and there was no difference.

Asked by stevemp 1 year ago

Answered by stevemp 1 year ago