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Unable to start Firefox, not even in Safe Mode ...

Hail: System Software: Win11Ent_x64 v22H2 (b: 22621.2283) MFF v18.5.0.0 No matter what I try, my MFF keeps crashing at startup. For some reason, it tries to open 2 page… (xem thêm)

Hail:

System Software: Win11Ent_x64 v22H2 (b: 22621.2283) MFF v18.5.0.0

No matter what I try, my MFF keeps crashing at startup. For some reason, it tries to open 2 pages the windows at the same time, which is illogical. I deleted firstly my: sessionstore.jsonlz4 logins.json to no avail.

Then I tried to open MFF through elevated CMD with the command: C:\Program Files\Mozilla Firefox\firefox.exe -safe-mode Again, 2 windows pop crashing immediately.

I do not understand why all of the sudden, it tries to open 2 different instances at once. This makes no sense. I am out of ideas, having tried many an option found on Google, but which none give me a solution.

If anyone has an idea, I would be quite darn thankful. This MSEdge crap that I need to use now is not quite my thing.

Thank you. Ke'Ylan

Được hỏi bởi Ke'Ylan Abaddon Banthraxx 5 tháng trước

Được trả lời bởi cor-el 4 tháng trước

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Firefox crashes most of the time when I close the browser

Hello Firefox Support Staff, I use Firefox on a Windows 10 desktop PC. Firefox often crashes when I close the browser by clicking the X either at the top right or the … (xem thêm)

Hello Firefox Support Staff,

I use Firefox on a Windows 10 desktop PC.

Firefox often crashes when I close the browser by clicking the X either at the top right or the tab.

Please let me know the type of information you need to debug.

Thanks, Sam

Được hỏi bởi sam_subramanian 1 năm trước

Lần cuối trả lời bởi sam_subramanian 11 tháng trước

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firefox wont start / run command firefox.exe -p wont run

firefox is my goto browser-tons of bookmarks etc-always kept UpToDate along with my dell MS10 laptop - today laptop boots up fine, outlook and MS edge work fine, but fire… (xem thêm)

firefox is my goto browser-tons of bookmarks etc-always kept UpToDate along with my dell MS10 laptop - today laptop boots up fine, outlook and MS edge work fine, but firefox will not start up, even in Administrator mode - searched for help - tried the run command firefox.exe -p, and also tried to create new profile ( as suggested ) that didnt work either- i would hate to uninstall and reinstall ! any help besides that ?

Được hỏi bởi Mike 1 năm trước

Lần cuối trả lời bởi jonzn4SUSE 1 năm trước

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Your system has run out of application memory

I am using the latest version of Firefox with Mojave on a Mac. Lately I have experienced slowness despite the fact that I didn't add any software and I have Norton check… (xem thêm)

I am using the latest version of Firefox with Mojave on a Mac.

Lately I have experienced slowness despite the fact that I didn't add any software and I have Norton checking for viruses. Recently I got a message "Your system has run out of application memory" when I had 5 tabs open in Firefox. I checked Activity Monitor and it showed Firefox using 1.16 GB. 7 other apps were open, the next one with the highest memory usage was Mail (465 MB). Activity Monitor showed 30 instances of FirefoxCP Isolated Web Content entries.

I attached a screen capture showing what Firefox was using in one of these instances. Is this "normal" with 5 tabs open?

I closed the open tabs and quit Firefox. Memory usage by Firefox went down, but after a short time the problem happened again.

A search on the internet showed lots of similar complaints about FirefoxCP Isolated Web Content. Is this a known bug? Any way to avoid this problem?

Thanks.

Được hỏi bởi Sue 1 năm trước

Lần cuối trả lời bởi Sue 1 năm trước

Firefox freezes with every case of opening location choosing window

I've encountered a very weird behavior: when selecting where to save a file or selecting a file to upload, the browser hangs 100% of the time. Even when I go to about:m… (xem thêm)

I've encountered a very weird behavior: when selecting where to save a file or selecting a file to upload, the browser hangs 100% of the time.

Even when I go to about:memory, click Load, the path selection window appears - regardless of whether I select a file or close the window, the browser hangs and the window stops responding. I tried waiting for several hours - to no avail. Only restarting helps. Same with the upload selection window - regardless of whether I selected a file to upload or closed the selection window, the browser hangs. Before freezing permanently, the mouse cursor stops moving, then lags around a bit before recovering.

I tried cleaning download history, cache, recreated profile, restarted without extensions, in safe mode, disabled antivirus - always the same result.

Please advise me, maybe someone has encountered something like this - I really don't want to start using Chrome. My OS is Windows 11. Thanks in advance.

Được hỏi bởi madd.korben 4 tháng trước

Lần cuối trả lời bởi mikey-d 2 tuần trước

Saved Bookmarks keep disappearing from view in the Toolbar Bookmark Sidebar

I've noticed this issue happening randomly, some of my toolbar bookmarks listed on the sidebar just up and disappear from view. As if they were never there. But I know th… (xem thêm)

I've noticed this issue happening randomly, some of my toolbar bookmarks listed on the sidebar just up and disappear from view. As if they were never there. But I know they're still saved because when I click to Manage Bookmarks and check them there, they show up fine. The toolbar just randomly hides them for whatever reason, and I can only fix it by closing Firefox and opening it again.

I'm on the current version. I remember accessing about:support and clicking on Verify Integrity while trying troubleshoot some other issue, but don't know if that could've caused it though.

Được hỏi bởi Felis-2 5 tháng trước

Lần cuối trả lời bởi cor-el 3 tháng trước

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Getting pop-up for critical virus alert when running 96.0.3 on Win 10 Pro

I'm running 96.0.3 on a fully patched Win 10 Pro system - both O/S and programs. When Firefox is running I'm getting these pop-up error messages randomly with changing c… (xem thêm)

I'm running 96.0.3 on a fully patched Win 10 Pro system - both O/S and programs. When Firefox is running I'm getting these pop-up error messages randomly with changing content. They stay on screen for some seconds and then go away. Message states it's from (via) 5.back2yard.biz. I put that in my hosts file and I'm still getting them. My network is a cable modem hooked to Xfinity and then cable connected to another fully newer patched router. All addresses are 10. range. I ran both a Malwarebytes scan and a Windows Security scan - both are clean.

I'm unable to upload a small image after a hour so I'll give up on that right now.

Được hỏi bởi oldserverguy 2 năm trước

Được trả lời bởi oldserverguy 2 năm trước

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Encrypted HTTPS websites always ask if I want to trust the certificate

I am using Mozilla Firefox 64-bit with version 107.0 on Windows 10 21H2. I connect very often to HTTPS websites without a valid certificate. Often with certificates issue… (xem thêm)

I am using Mozilla Firefox 64-bit with version 107.0 on Windows 10 21H2. I connect very often to HTTPS websites without a valid certificate. Often with certificates issued by themselves. Before it was always enough to say "I trust this website" once. Now the question comes again and again, whenever I connect. What could be the cause of this?

Được hỏi bởi Andreas Fendt 1 năm trước

Lần cuối trả lời bởi TyDraniu 1 năm trước

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Firefox Crash Bug Report

Firefox On Linux Persists with a problem that many webpages that are useful,such as wikipedia,youtube or any others crash the browser because for no reason,it returns an … (xem thêm)

Firefox On Linux Persists with a problem that many webpages that are useful,such as wikipedia,youtube or any others crash the browser because for no reason,it returns an error message saying that i have multiple tabs open when there are only 2 tabs shown at the screen at one time,is this normal? i found this out in 100.0.2 and no,some useful websites like troubleshooting or websites with multiple file links for example can still run like they normally would

Được hỏi bởi robinarensgamer 1 năm trước

Lần cuối trả lời bởi jonzn4SUSE 1 năm trước

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Firefox crashes sometimes after downloading a file

Recently my Firefox crashes sometimes when downloading a file for example from Yahoo mail. This is not happening always, but sometimes when downloading a file. I have the… (xem thêm)

Recently my Firefox crashes sometimes when downloading a file for example from Yahoo mail. This is not happening always, but sometimes when downloading a file. I have the latest version of Firefox, Windows 10. I changed password, deleted cookies, did full virus scan, but the problem still persists. Is this an issue of the new version of Firefox and will be fixed with the new update of Firefox ? This is happening only with Firefox and not with other browsers.

Được hỏi bởi eladopoulos 1 năm trước

Lần cuối trả lời bởi eladopoulos 1 năm trước

Lame game

I play a game at Vegas World. It's basically a free online slot machine site. I have played it for years with Chrome. Recently switched to Firefox. Playing an auto spin s… (xem thêm)

I play a game at Vegas World. It's basically a free online slot machine site. I have played it for years with Chrome. Recently switched to Firefox. Playing an auto spin slot game, Firefox gets slow and hangs after about 25 spins. Chrome will go for 10,000 spins. So, Firefox is useless on game sites. I don't really expect a fix or solution. And I don't actually expect to use Firefox by the end of the day.

Được hỏi bởi wisemagic1 2 tuần trước

Lần cuối trả lời bởi zeroknight 2 tuần trước

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Random crashes

Hello there. Ever since the latest update (to 115.0.2), I've been experiences random crashes. It's only happening with these 2 sites: https://www.mapsofworld.com/ and htt… (xem thêm)

Hello there. Ever since the latest update (to 115.0.2), I've been experiences random crashes. It's only happening with these 2 sites: https://www.mapsofworld.com/ and https://www.buongiorno.sk/ (there may be more but I haven't discovered any others as of yet). I open the sites and FF immediately shuts down. And then, after I restart it, there are no crashes listed in the logs (about:crashes). I've tried everything. Cookies, cache, a "refresh", a fresh install and I've also checked my system and HDD for errors but nothing helped. Any idea what I should do? The problem seems to be on your side, not mine

Được hỏi bởi holland25 7 tháng trước

Lần cuối trả lời bởi holland25 7 tháng trước

how to recover passwords i recently accidentally deleted?

I need step by step on how to recover deleleted passwords please do not respond unless you are going to tell me step on step what i need to do with loginbackupjson … (xem thêm)

I need step by step on how to recover deleleted passwords

please do not respond unless you are going to tell me step on step what i need to do with loginbackupjson

Được hỏi bởi Faerie Caster 2 tháng trước

Lần cuối trả lời bởi Faerie Caster 1 tháng trước

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browser.download.lastDir.savePerSite does not work

When downloading files, Firefox no longer remembers the directory path the file was previously saved to on a per-URL basis. Previous Firefox behavior: #1. download file… (xem thêm)

When downloading files, Firefox no longer remembers the directory path the file was previously saved to on a per-URL basis.

Previous Firefox behavior: #1. download file from website "aaaa.com" to a folder on your computer, "user/frank/companies/aaaa/". #2. download file from website "bbbb.com" to a folder on your computer, "user/frank/companies/bbbb/". #3. Now, go back to the website "aaaa.com" and attempt to download another file. Firefox used to present the previously used directory for this particular URL, in this case, "user/frank/companies/aaaa/" - but instead, now it presents the most recently used directory path, which was "user/frank/companies/bbbb/".

This issue has appeared before and the advice to fix it was to go about:config, search for browser.download.lastDir.savePerSite and make sure it is set at TRUE. I have done this, but the issue remains: Firefox no longer remembers saved file directory paths on a per-URL basis.

MacOS 11.6.6 (Big Sur); Latest Firefox (103.0.2) Attempts to fix: Safe Mode - issue still present; Refresh Firefox - issue still present

Is there any advice on how to fix this problem? - Thxs.

Được hỏi bởi gvmelbrty 1 năm trước

Được trả lời bởi gvmelbrty 1 năm trước

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YouTube videos don't work with Firefox

YouTube videos not working with Firefox since recent updates. Videos start to load but don't don't complete. Firefox is the only browser with this issue. Have tried three… (xem thêm)

YouTube videos not working with Firefox since recent updates. Videos start to load but don't don't complete. Firefox is the only browser with this issue. Have tried three other browsers without issue.

Được hỏi bởi lbertrand 1 năm trước

Lần cuối trả lời bởi lbertrand 1 năm trước

Problems with Google on Firefox

On my laptop (121.0 on doze 10) I have no problems but on my desktop Firefox (121.0 on doze 10) started to struggle with Google a few months ago. Sometimes the Google sit… (xem thêm)

On my laptop (121.0 on doze 10) I have no problems but on my desktop Firefox (121.0 on doze 10) started to struggle with Google a few months ago. Sometimes the Google site doesn't load, sometimes it loads but doesn't connect (no auto-complete, no search) and if it does work the result links often don't load when clicked. It's like Google falls asleep and then, when it wakes up, all is fine, until it nods off again. I have followed advice provided, cleared cache, cleared cookies, removed plugins and extensions, reinitiated and reinstalled. Running in safe mode seems to help, as in pages seem to load faster, but sadly does not eliminate the problems. Other browsers on this machine are not affected. No time sync issues.

Any suggestions?

TIA

Được hỏi bởi Kevin McManus 1 tháng trước

Lần cuối trả lời bởi Kevin McManus 1 tháng trước

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Videos won't play in firefox

Every day. Videos won't play. sometimes one restart of firefox will fix it. sometimes multiple restarts are required before it'll work. The loading bar at the bottom of t… (xem thêm)

Every day. Videos won't play. sometimes one restart of firefox will fix it. sometimes multiple restarts are required before it'll work. The loading bar at the bottom of the video (on the seek bar) indicates the video is loading but it won't play. There have been times where I have disabled every single add-on and it would not work. Add-ons do not seem to be the cause. I have tried it in a private browser window with no joy. I have refreshed firefox, I have uninstalled and reinstalled it. I have tried disabling my antivirus. I have tested videos on websites in other browsers with no issue. The issue seems to be with the video player itself. overlays seem unaffected, I can use the seek bar and it shows the captions. I have tested different websites including Youtube, Vimeo and Steam. I tried many tens of times to get it working today to no avail. finally when I closed nearly all my tabs, the video worked (but I had also opened TOR and run avideo in that), I am not sure if this is the cause. If the cause is having multiple tabs open, this is an issue for me. I have a learning disability and likely ADHD and I have a set of tabs as my homepages so I don't forget things. If It's not the mutliple tabs, then what else can I do?

Được hỏi bởi tremault 7 tháng trước

Lần cuối trả lời bởi tremault 7 tháng trước

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session store recovery.jsonlz4 does not update frequently

I wondered several times why firefox recovers old tabs when it chrashed. now i see that in my profile folder/sessionstore-backups the file recovery.jsonlz4 is some days o… (xem thêm)

I wondered several times why firefox recovers old tabs when it chrashed. now i see that in my profile folder/sessionstore-backups the file recovery.jsonlz4 is some days old (while i was using firefox in the meantime very often) and does not update frequently as requested by about:config browser.sessionstore.interval = 15000 (15s). - this folder or the files are not locked. i can delete/rename them, they are not re-created - there is no file sessionstore.* in the main folder of firefox profile while running firefox - i am using 102.4.0esr (32-Bit) on a company PC (could there be any restrictions?) - the file previous.jsonlz4 seems to be created correctly when firefox is closed normal (which is not my usecase, i want to restore up to date tabs after crashes) - i am not using a private window

do you have any idea?

Được hỏi bởi mais285 1 năm trước

Được trả lời bởi mais285 1 năm trước

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Firefox Will Not Open Despite Trying Several Solutions (Windows 10)

I recently made the switch to Firefox. I attempted to use the version downloaded from the internet, which I already had installed for a long time, but it would not open. … (xem thêm)

I recently made the switch to Firefox. I attempted to use the version downloaded from the internet, which I already had installed for a long time, but it would not open. I then used the version available on the Microsoft Store, which worked fine. Eventually, Firefox crashed and would not reopen. A message saying something along the lines of "Are you sure you want to start Firefox in safe mode?" would appear for a split second, and then close. I tried:

-Starting Firefox in safe mode, but nothing happened. -Restarting my computer. -Reinstalling Firefox. -Running as administrator. -Checking it is not blocked by antivirus. -Using the profile manager to create a new profile: The .zip file version opens but does not help, and the version opened by using the "firefox.exe -P" command in Run suffers from the same problem as the browser and opens for only a split second. -Attempting to boot my computer in safe mode with networking, however, the Microsoft Store listed Firefox as uninstalled, and the network menu would not display any networks so I could not reinstall it. -Searching for any Comodo iseguard.dll files, but I found none.

The only thing that worked was searching "Mozilla" in files and deleting everything except what my computer said was part of the system. After that, I was able to open Firefox, but after a short amount of time, the problem started all over. I have no clue what to do and looking all over for solutions is driving me nuts! Please help!

Được hỏi bởi John R 1 năm trước

Lần cuối trả lời bởi John R 1 năm trước

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Broken font-families

Hi everyone, lately I started experiencing a font-family-related issue. On certain websites the font-families/styles look broken. I tried troubleshooting the issue by my… (xem thêm)

Hi everyone,

lately I started experiencing a font-family-related issue. On certain websites the font-families/styles look broken. I tried troubleshooting the issue by myself without any luck. What I did so far was reset my Windows fonts to default, reinstall Firefox and look what font-families are loaded through the Inspect tool. If I opened the same web page in Chrome the font looks OK. Two websites the issue is most visible at - support.fiverr.com and gmail.com when someone replies to my e-mail.

Please find below a screenshot of what I mean

Được hỏi bởi koko 1 năm trước

Được trả lời bởi jscher2000 - Support Volunteer 1 năm trước