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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… (ulteriori informazioni)

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 mesi fa

Answered by FredMcD 3 mesi fa

Since update to 76.0.1, Firefox crashes right after starting. Even safe mode does not help ...

Hi all, I just got the update to 76.0.1. Now, Firefox Always crashes right after starting it - even in safe mode. The only notification I get is (in German) "Firefox funk… (ulteriori informazioni)

Hi all, I just got the update to 76.0.1. Now, Firefox Always crashes right after starting it - even in safe mode. The only notification I get is (in German) "Firefox funktioniert nicht mehr. Ein Problem hat die richige Ausführug dieses Programms verhindert. Schließen Sie das Programm" Please help!!!

Asked by webersebastian 2 settimane fa

Last reply by Tom 1 settimana fa

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Firefox has stopped working altogether (Windows 7). It will NOT start. I have uninstalled everything that I could find to uninstall, and then re-installed.

Firefox has stopped working altogether (Windows 7). It will NOT start. The spinning start up graphic will spin for a moment, and quit. I have uninstalled everything that … (ulteriori informazioni)

Firefox has stopped working altogether (Windows 7). It will NOT start. The spinning start up graphic will spin for a moment, and quit. I have uninstalled everything that I could find to uninstall, and then re-installed, but to no avail. I have followed the currently posted suggestions with out success. Any other suggestions?

Asked by OUgrad1976 5 anni fa

Last reply by guigs 5 anni fa

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Videos freezing when i watch an episode

i tried watching an episode of Friends on vodlocker & gorillavid & it starts to skip, the video become staticky, changes to green then crashes. (shockwave) also P… (ulteriori informazioni)

i tried watching an episode of Friends on vodlocker & gorillavid & it starts to skip, the video become staticky, changes to green then crashes. (shockwave)

also Pandora does the same thing. i listen to a song, it starts to skip, shockwave crash box pops up. i stop the plugin then the tab closes.

i allow Adobe flash to run on the page.

i have no add ons or downloads. i reset firefox yesterday. i'm confused as to whats wrong.

Asked by UserofFirefox2014 5 anni fa

Last reply by James 5 anni fa

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Is there any possible way to speak to a person about fixing my firefox browser? It will not open and I do not want to lose the information stored there.

My firefox browser will not open, so I can not try most of the solutions recommended. I do not want to lose stored information such as bookmarks and pass codes so would … (ulteriori informazioni)

My firefox browser will not open, so I can not try most of the solutions recommended. I do not want to lose stored information such as bookmarks and pass codes so would unstalling and reinstalling cause me to lose that information? I need to speak to a person to help with this, but do not know how to go about it. Should I be contacting Norton or Mozilla?

Asked by sallywaz 5 anni fa

Answered by FredMcD 5 anni fa

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Firefox won't open tools/option/general/download/browse button and gmail attach button

Firefox has no response to gmail, yahoo mail attach icon (Chrome worked) even in Firefox's own Tools/options/general/download/browse button won't respond I have tried fol… (ulteriori informazioni)

Firefox has no response to gmail, yahoo mail attach icon (Chrome worked) even in Firefox's own Tools/options/general/download/browse button won't respond I have tried following suggestions 1. uninstall /reinstall firefox 2. Allow pop-up through Tools/pageinfo/permission 3. uncheck block pop-up in Tools/options/content Please help, Thanks.

Asked by robindpan 5 anni fa

Last reply by guigs 5 anni fa

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pc won't start up after latest Firefox update. What's happening!

after downloading a recent Firefox update, pc (windows) can't start up; the Repair screen suggests the operating system was corrrupted by the software change and now the … (ulteriori informazioni)

after downloading a recent Firefox update, pc (windows) can't start up; the Repair screen suggests the operating system was corrrupted by the software change and now the computer hangs up on the Start Repair screen. Nothing happens, even after hours!

Asked by drumrich 4 anni fa

Last reply by FredMcD 4 anni fa

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when I updated to version 42 some how it got locked up trying to update the "update" log. the activity icon keeps spinning and the staus4ever addon bar stays ac

When I updated to version 42 something happened during the upgrade. The activity icon keeps circling and my staus-4-ever add-on bar remains on and wont go away. When I tr… (ulteriori informazioni)

When I updated to version 42 something happened during the upgrade. The activity icon keeps circling and my staus-4-ever add-on bar remains on and wont go away. When I try to check for updates in options it does not show the update to version 42 but when I go into help about Firefox shows I have version 42. I tried restarting my computer and it still shows the download icon circling etc. T the shut down the computer and powered it back up with the same results. I refreshed Firefox and that didn't help either. any suggestions?

Asked by lxllrl11300 4 anni fa

Answered by guigs 4 anni fa

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After update to 42, partial Load in memory (task manager) but virus software prevents dependent thread from completing but only 2nd & subsequent loads.

Task manager shows Firefox loaded as a service but has threads waiting to complete. There is no application shown in Task Manager (which seems reasonable as Firefox has n… (ulteriori informazioni)

Task manager shows Firefox loaded as a service but has threads waiting to complete. There is no application shown in Task Manager (which seems reasonable as Firefox has not loaded). There are no error messages. The " microsoft spinning circle " goes for a few seconds and then dissappears as if the program has loaded. Happens only after 2nd & subsequent loads after reboot. Firefox appears to work first time after reboot. This has only happened after upgrade to 42. Clean install makes no difference. Chrome works OK Has worked fine up until update 42. Already tried doing a clean install with the Inform Mozilla box cleared. Perhaps Firefox has started using a port that is blocked by the virus scanner? I get no logging for the virus scanner showing anything blocked. A full virus scan reveals nothing. Operating system is Windows 10 (64 bit)

Asked by berniek 4 anni fa

Answered by berniek 4 anni fa

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cannot install firefox because malaware

cant install firefox doesnt open correctly the setup error message says Run as: you may not have the necessary permissions to use all the features of the program, you may… (ulteriori informazioni)

cant install firefox doesnt open correctly the setup error message says Run as: you may not have the necessary permissions to use all the features of the program, you may run the program with same or different user, none works, i am the only user of my laptop

Asked by Excal1bur 4 anni fa

Last reply by cor-el 4 anni fa

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Ver 46 doesn't work on W7, had to downgrade to 44

Stored passwd does not work. Right-click link to new tab (or new window) does not work Back does not work Refresh page does not work Homepage is gone in start, but appea… (ulteriori informazioni)

Stored passwd does not work. Right-click link to new tab (or new window) does not work Back does not work Refresh page does not work Homepage is gone in start, but appear when clicking on home symbol Googlesearch in firefox page (homepage) does not work Private window is gone

Asked by ggloersen 4 anni fa

Last reply by cor-el 4 anni fa

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Admin 64-bit Win 7 Prof cannot open existing FF 45.0.1 or install (save/run) 46.0.1--ALL ATTEMPTS produce "A required privilege is not held by the client."

Administrator on 64-bit Windows 7 Professional unable to open existing Firefox (45.0.1) or install 46.0.1 (with save or run) -- ALL ATTEMPTS produce this pop-up: "A requ… (ulteriori informazioni)

Administrator on 64-bit Windows 7 Professional unable to open existing Firefox (45.0.1) or install 46.0.1 (with save or run) -- ALL ATTEMPTS produce this pop-up: "A required privilege is not held by the client."

Version 45.0.1 was working. As I usually do and have done for many versions of Firefox, I downloaded Firefox Setup Stub 46.0.1 with Save rather than Run. However, I could not run it from the download. Firefox was still working. Then I used the Update from inside Firefox (which I presume was the same download), and Firefox has not worked since. I cannot open it with the icon on my taskbar, by using the Start menu, or by clicking on firefox.exe in C:\Program Files (x86)\Mozilla Firefox.

I have spent HOURS searching and reading and trying possible solutions to other problems (not Firefox) where the users had that, or a similar, message. Nothing has worked.

The Securities tab of the Properties of the firefox.exe file shows three "Group or user names" -- SYSTEM, Administrators (with-my-name-here), and Users (with-my-name-again). SYSTEM and Administrators have all "Permissions for Users" allowed (except for "Special permissions" for which neither Allow nor Deny is ticked). Users has ticks to Allow only for "Read & execute" and "Read".

The Advanced Security Settings show me as Administrator as the Owner. I have "Full control" in Permissions (not inherited), and a second entry with me as Administrator also indicates "Full control" (inherited from C:\Program Files (x86)\ for this entry). The SYSTEM entry also has "Full control" (inherited from C:\Program Files (x86)\ . The Users (with-my-name) has a "Read & execute" Permission (inherited from C:\Program Files (x86)\ .

So, I have "Full control".

What does "A required privilege is not held by the client" mean?

Who is the client?

What is the "required privilege"?

And where does one get it?

For a few days I have been receiving pop-ups about updating to a newer version of Thunderbird. Normally I would do so without hesitation (as I have done in the past with Firefox). However, I am now afraid to attempt this in case the same thing happens with Thunderbird and I can't access my emails. At least I can use another browser (as I am obviously doing to post this).

Years ago I used Netscape Navigator (preferred) and Internet Explorer. The first time I used Firefox was at an Internet café on a holiday. I had to learn to use it because it was the only browser on the machines. When I got home, I downloaded Firefox and have been using it ever since. I loved the multiple tabs (which IE did not have at the time). I have IE and Chromodo on my machine, but I only use them for sites that don't work with Firefox (fewer and fewer as the years have gone by).

Can someone help me so that I can return to Firefox? Please?

Asked by A.N.Onymous 4 anni fa

Last reply by FredMcD 4 anni fa

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Ver.48 where is XPCOM????

downloaded Linux update ver.48 firefox. fires up - spits out XPCOM not found and terminates. ver.17 had similar problem. it could not find the libxpcom.so in firefox di… (ulteriori informazioni)

downloaded Linux update ver.48 firefox. fires up - spits out XPCOM not found and terminates. ver.17 had similar problem. it could not find the libxpcom.so in firefox directory. ver.48 - xpcom is no where to be found.

Asked by Norseman01 3 anni fa

Answered by Norseman01 3 anni fa

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Firefox 49.0 can't be opened after install; these two do not work: https://support.mozilla.org/en-US/kb/firefox-cant-be-opened-after-you-install-it-on-mac

OS X 10.10.5. As has been happening with recent versions, Firefox announced an upgrade, but added in the same message that the upgrade could not be installed because the… (ulteriori informazioni)

OS X 10.10.5. As has been happening with recent versions, Firefox announced an upgrade, but added in the same message that the upgrade could not be installed because the account lacked administrator privileges.* I downloaded Firefox 49.0 and replaced the previous version. I got the warning (no surprise).

Option 1: Using Finder I hold down the control key while clicking the Firefox app file. It opens. I close it, wait, click the icon in the dock. Same verifying and then the developer message with Cancel or Open. Option 1 does not seem to cause 49.0 to be recognized as accepted.

Option 2: I click the icon in the dock and choose Cancel in the developer message. Then open System Preferences>Security & Privacy. I see the message about Firefox and the Open Anyway button. Whether I am fast enough to click it or not, I can't tell. Whether I try to click (even if it seems I was fast enough) or simply wait a second or two, that part of the Security & Privacy pane is cleared. The next time I launch Firefox, OS X verifies and offers Cancel or Open.

Asked by joaquin.oakland 3 anni fa

Last reply by joaquin.oakland 3 anni fa

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Mozilla uninstalled from MAC don´t know what or how, and cant be installed again

Mozilla web browser uninstalled by itself or mac or I dont know what, and I cant install it again. App does not appear when I run the downloaded program. Thanks AB … (ulteriori informazioni)

Mozilla web browser uninstalled by itself or mac or I dont know what, and I cant install it again. App does not appear when I run the downloaded program. Thanks AB

Asked by ARBOL 3 anni fa

Last reply by FredMcD 3 anni fa

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New Firefox update. Now it crashes with "Windows can not access ..."

Tried to start Firefox. It did an in requested "update". Now it won't start but rather gives me an error message "Windows can not access the specifies device ..." How do … (ulteriori informazioni)

Tried to start Firefox. It did an in requested "update". Now it won't start but rather gives me an error message "Windows can not access the specifies device ..."

How do I fix?

Eric Johnson

Do not include email addresses in your post. We will not email you.

Asked by ejstruan 3 anni fa

Answered by ejstruan 3 anni fa

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I completely removed Firefox and deleted all folders. After installing Firefox fresh, Firefox sees that it was previously installed??

I completely removed Firefox and deleted all folders. After installing Firefox fresh, Firefox sees that it was previously installed?? "Looks like you've reinstalled Firef… (ulteriori informazioni)

I completely removed Firefox and deleted all folders. After installing Firefox fresh, Firefox sees that it was previously installed?? "Looks like you've reinstalled Firefox. Want us to clean it up for a fresh, like-new experience?"

I uninstalled Firefox (supposedly) "completely" using the guide here: https://support.mozilla.org/en-US/kb/uninstall-firefox-from-your-computer

Why does the new install Firefox recognize that it was previously installed? Uninstall tool needs to uninstall Firefox COMPLETELY. Since it lies, can someone help tell me what is the appropriate steps for COMPLETE removal?

Asked by R0tten 3 anni fa

Answered by R0tten 3 anni fa

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Firefox 50.0.2 and/ or Mozilla Maintenance Service is causing Windows 64 bit computers on my network to crash upon reboot. What is the fix?

I have several workstations on my network that will not properly boot into Windows after installing the 50.0.2 update and Maintenance Service. My end users have been perf… (ulteriori informazioni)

I have several workstations on my network that will not properly boot into Windows after installing the 50.0.2 update and Maintenance Service. My end users have been performing several hard shutdowns in order to get Windows to boot properly( I do not advise this). This situation has been worse with computers that installed Windows updates during the same session as the Mozilla update. These computers get stuck in a continuous installation loop. Fixes that have worked include booting to safe mode and issuing " shutdown -r" in an elevated cmd terminal, or uninstalling Firefox and Maintenance Service completely from safe mode. Do we need to discontinue use, block your updates on our network, or is there another solution?

Asked by jhodges 3 anni fa

Last reply by FredMcD 3 anni fa