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After downloading and starting Firefox, I get an error message that says "A copy of Firefox is already open. only one copy of Firefox can be open at a time." The thing is I don't have another copy open.

After downloading and starting Firefox, I get an error message that says "A copy of Firefox is already open. only one copy of Firefox can be open at a time." The thing is… (read more)

After downloading and starting Firefox, I get an error message that says "A copy of Firefox is already open. only one copy of Firefox can be open at a time." The thing is I don't have another copy running.

Asked by krich377 1 month ago

Answered by jscher2000 1 month ago

  • Solved

Firefox problems with specific web sites

Have used Firefox for years. Starting on Oct. 29, I am no longer able to log into my account at www.usbank.com using Firefox -- the Log In button is not working. I tried … (read more)

Have used Firefox for years. Starting on Oct. 29, I am no longer able to log into my account at www.usbank.com using Firefox -- the Log In button is not working. I tried Microsoft Edge and was able to log on.

Asked by larrydaleparker 8 hours ago

Answered by FredMcD 5 hours ago

  • Solved

Interactive Weather Radar Maps Not Working In Firefox

One feature at www.weather.com (Weather Channel) is their "weather in motion" feature which loads interactive weather radars. For some reason, this is not working on my … (read more)

One feature at www.weather.com (Weather Channel) is their "weather in motion" feature which loads interactive weather radars. For some reason, this is not working on my Firefox browser. It works fine in Chrome and Edge. The weather.com website loads just fine but the radar data (overlay on a map) will not load. IT WORKS FINE IN SAFE MODE. So i tried to disable all of my plug-in's, extensions and hardware acceleration in Firefox in regular mode. Still doesn't work. I created a new profile. Still doesn't work. I disabled the tracker feature in Firefox on that web page. Still doesn't work. I uninstalled and reinstalled Adobe Flash. Still doesn't work. Any ideas???

Firefox version 82.0 64 bit Running Windows 10 Professional

Asked by jlfptf 4 days ago

Answered by jlfptf 2 days ago

  • Solved

Google "settings," "tools," etc. no longer work

So this is a weird development. All of a sudden, when I try to search with Google, the "settings" and "tools," buttons no longer work, unless I'm doing a search for news.… (read more)

So this is a weird development. All of a sudden, when I try to search with Google, the "settings" and "tools," buttons no longer work, unless I'm doing a search for news. Thus, for example, if I'm trying to find an image that is on a CC license, that's impossible, or if I'm trying to find a how-to piece that's less than five years old, that's also impossible.

Also, when I do search for images, only the first few images are clear. The rest are simple blocks of color.

I don't have the problem with duckduckgo.

I'm running the latest version of firefox on a mac.

Am I doing something stupid? Which is all too likely, I'm afraid :-)

many thanks in advance.

Asked by mtucker57 1 day ago

Answered by jscher2000 1 day ago

  • Solved

firefox logs me out of all websites

Hello i have been having an issue with my browser where when ever i close it logs me out of all the websites i have been logged in to. i have refreshed it and i have rein… (read more)

Hello

i have been having an issue with my browser where when ever i close it logs me out of all the websites i have been logged in to. i have refreshed it and i have reinstalled it and i still have the same problem and its making it really hard to work. any input is really appreciated.

thank you.

Asked by barzi.galala 2 months ago

Answered by FredMcD 2 months ago

  • Solved

Firefox interface broken

Hello, today I have started my Firefox and noticed that the interface is now totally broken. The close/minimize/restore buttons are missing, in full-screen mode I can't d… (read more)

Hello,

today I have started my Firefox and noticed that the interface is now totally broken. The close/minimize/restore buttons are missing, in full-screen mode I can't drag around the window anymore, some of my addons don't have icons or are totally broken and sometimes the interface reverts back to some Windows 98 style which looks totally broken too.

My steps to fix this so far were:

Firefox safe mode Firefox re-install Profile folders in appdata and all other related Mozilla/Firefox files and folders deleted

Funnily enough the same thing happened to Thunderbird last year, the only way to fix that was to install a very old version of TB 56 which I'm still using today. Don't Mozilla developers know how to code? All my other programs work fine.

Asked by zimmer.andre 1 day ago

Answered by zimmer.andre 1 day ago

  • Solved

Inspector element highlight html element wont go away when the mouse no longer hovers

This question is about the developer tools (inspector). Sorry if this is not the right forum. If this is not the right place, please specify where I can ask this question… (read more)

This question is about the developer tools (inspector). Sorry if this is not the right forum. If this is not the right place, please specify where I can ask this question. I have looked around but this seemed like the best place to write this.

This problem started a couple a month ago in Firefox Developer Edtion after an automatic update (to either v82 or 83, im not sure).

This is what used to be the case, prior to the update: In the developer tools, in the inspector tab. There's an overview of the HTML-tree, and when you hover over an html-element in the tree, the correspondent element in de browser window is highlighted, and when you move your mouse the item will no longer be highlighted, since you're no longer hovering over it in the HTML tree. This is how it has always been.

The situation as it has been for 2 to 4 weeks: After selecting a couple of items in de HTML tree, and maybe editing some CSS, so just after normal use, The selected element will stay highlighted, even though I'm no longer hovering over it in the Inspector window. I added a screenshot to show what I mean. This bug is annoying because when editing CSS, I want to be able to clearly see the changes I mean, but now theyre obstructed by the highlight. Toggling developer tools by pressing F12 twice fixes this obviously, but only for a couple of minutes, and sometimes the problem return immidiatly.

This problem first emerged in Firefox Developer Edition about a month ago after an update. It really messes with my workflow, and I couldnt find a solution. Tee problem emerged on multiple websites (not just the ones a was developing, as you can see in my screenshot it also happens on the mozzila website) and the problem was the same accros multiple computers (all modern windows 10 machinary, owned by me or my collegues). So I stopped using Developer Edition, and switched to using 'regular' Firefox for developing, as regular Firefox did not exibit this bug. But since last week, after regular Firefox also got an update, the bug appears in regular Firefox aswell.

So here I am, an avid Firefox Developer Edition user, desperate for a solution. Ofcourse I already tried everything from reïnstalling, refreshing firefox, everything.

Thanks

Asked by diede 1 day ago

Answered by jscher2000 1 day ago

  • Solved

Youtube error: "An error occurred. Please try again later. (Playback ID: uFCV2ClQxLQMYdFX)"

Youtube was working fine but now it gives me the error message "An error occurred. Please try again later. (Playback ID: uFCV2ClQxLQMYdFX)" I cleared cache, refreshed the… (read more)

Youtube was working fine but now it gives me the error message "An error occurred. Please try again later. (Playback ID: uFCV2ClQxLQMYdFX)"

I cleared cache, refreshed the browser, restarted, disabled ublock and logged out of my YT account. Still doesn't seem to work.

Youtube works fine on other browsers like edge and chrome.

Asked by munifc 2 days ago

Answered by FredMcD 2 days ago

  • Solved

secure conex fail

message received this evening. however, signed in without problem earlier today: "Secure Connection Failed An error occurred during a connection to secure.capecodfive.com… (read more)

message received this evening. however, signed in without problem earlier today: "Secure Connection Failed

An error occurred during a connection to secure.capecodfive.com. PR_CONNECT_RESET_ERROR

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem."

have previewed help topics particular to this problem, but not finding exact phrase. this is my online banking account. i use it regularly and often. i wanted to transfer funds. i have contacted the bank customer service, advised to clear cache and cookies, but no luck. FF autoupdates, Win7 not applying updates, prefer not using Win10.

i am over the hill and picking up speed, but need hand-holding at this point. moz help has helped before with good results. thanks for the life-preserver! elise bowen, cape cod

Asked by notanotherhero 2 weeks ago

Answered by notanotherhero 2 days ago

  • Solved

Firefox ESR on Devuan has resize problems

Firefox ESR on Devuan, both 2.0 and Beowulf, has a problem involving resizing. Webpages that formally displayed fine now are too large (the indicator shows 100%, but I mu… (read more)

Firefox ESR on Devuan, both 2.0 and Beowulf, has a problem involving resizing. Webpages that formally displayed fine now are too large (the indicator shows 100%, but I must reduce it to 80% to display as it did before). Other Linux distributions, for example, Linux Mint and openSUSE, do not have this problem (PaleMoon on the Devuan system does not have the problem).

The hardware is old: Intel 3rd Generation Core processor, 8 GB memory, SSD connected via USB 3.0.

The best solution might be to run both Firefox ESR and regular Firefox. I can download the latter, extract it, move the folder to the desktop, and double-click on "firefox" to start it, similar to how I run PaleMoon. Is there a way to avoid them using the same profile?

Asked by pccobbler 3 days ago

Answered by cor-el 3 days ago

  • Solved

Firefox not launching (crashing) after update 82.0

We use Firefox as our company default and it has been running fine. This morning our devices started updating to version 82.0 and now it will not re-open. We get the foll… (read more)

We use Firefox as our company default and it has been running fine. This morning our devices started updating to version 82.0 and now it will not re-open. We get the following in event viewer:

Faulting application name: firefox.exe, version: 82.0.0.7592, time stamp: 0x5f8738dd Faulting module name: ntdll.dll, version: 10.0.18362.1049, time stamp: 0xb5beef21 Exception code: 0xc0000409 Fault offset: 0x00000000000a1170 Faulting process id: 0x504 Faulting application start time: 0x01d6a79d51cff95a Faulting application path: C:\Program Files\Mozilla Firefox\firefox.exe Faulting module path: C:\WINDOWS\SYSTEM32\ntdll.dll Report Id: a6b172b9-a2b5-4bc0-a874-22a48b48aa06 Faulting package full name: Faulting package-relative application ID:

When trying to uninstall from Program and Features we get the following NSIS error (attached).

Asked by dirkvdm85 1 week ago

Answered by Jonathan Watt 1 week ago

  • Solved

Firefox is gone this morning

Never had this before. I opened firefox this morning and restored the old tabs as I usually do every morning. They all opened up (e.f. tab with the correct title) but the… (read more)

Never had this before. I opened firefox this morning and restored the old tabs as I usually do every morning. They all opened up (e.f. tab with the correct title) but the address is empty and nothing loads.

Attempted in order: - open a new tab, would not even load google, simply a white page - same action on new window, same result - refreshed firefox= nothing - uninstalled firefox = no luck - removed the apps I installed in the last days (visual studio code) - installed firefox from scratch (no account sync) 82.0 (64-bit) nothing at all. Same result see image in attachment.

I also have: removed all cookies/cache (refresh would do any ways), scanned my computer for viruses (nothing found). It doesn't open the options from the menu, it doesn't show anything under about:config

Windows 10 2004

In 15 years I'm using FIrefox I have never seen anything like this :-o

Asked by bellocarico1 3 days ago

Answered by FredMcD 3 days ago

  • Solved

Mysterious black bars on webpages

Please see screenshot below. What are these fat black bars that keep appearing in my browser? They now show up on almost every web page. They suddenly appear as I move my… (read more)

Please see screenshot below.

What are these fat black bars that keep appearing in my browser? They now show up on almost every web page. They suddenly appear as I move my cursor around the page.

I’m using Firefox 82.0 (64-bit).

Asked by jih31 5 days ago

Answered by cor-el 5 days ago

  • Solved

Since latest windows update pages load at an extremely slow pace

Hi! As the title states, since the latest windows update (am now on 19041.508), anytime I go on a webpage on Firefox it's extremely slow to load, however once loaded the … (read more)

Hi! As the title states, since the latest windows update (am now on 19041.508), anytime I go on a webpage on Firefox it's extremely slow to load, however once loaded the page is as fast as it should be!

I don't have any antivirus other than windows defender, and disabling it/the windows firewall doesn't fix the issue, so it doesn't seem to be linked to that either, on the online forums such as this one I found it was also common to have issues caused by hardware acceleration, playing with that setting does not help either.

Another friend of mine has the same issue as me since the last update, so I'm assuming it's not something unique to my situation, is this a known issue for which a fix is available? Searching for one has yielded only outdated results.

Thanks a lot!

Asked by antoine.rincent 2 weeks ago

Answered by antoine.rincent 4 days ago

  • Solved

Firefox won't play any live video streams.

Hi, Since yesterday Firefox won't play any live video streams on any website. An HTML5 error message shows up. I've tried upgrading Firefox, disabling Add ons, starting i… (read more)

Hi, Since yesterday Firefox won't play any live video streams on any website. An HTML5 error message shows up.

I've tried upgrading Firefox, disabling Add ons, starting in safe mode, completely uninstalling and starting from scratch and installing and deleting Adobe flash as a last resort.

I made sure everything was up to date on my laptop and they play no problem on other browsers. I just can't work out what's wrong with Firefox.

Asked by demonchild_2004 6 days ago

Answered by demonchild_2004 4 days ago

  • Solved

My version of FF no longer works with FB (and quite a few other sites)

Today I see that FB fails to load my profile photo album. I get a spinning circle, description and comments section to the right is blank (or photo loads but no descripti… (read more)

Today I see that FB fails to load my profile photo album. I get a spinning circle, description and comments section to the right is blank (or photo loads but no description). I check my connection activity, it's basically at 10 kbps. I run some speed tests, no problem.

So I go to MS Edge, everything on FB loads in an instant.

So the problem is FF. And that's on top of the 50%-100% of CPU that every click on FB produces. I compared it with Edge, 5%-50% of CPU.

So before I give up on FF and switch to Edge, can someone recommend another version of FF that is relatively lightweight for a low spec laptop? The latest version is a no go, as I understand it needs at least 8-16 GB of memory (!).

Thank you.

Asked by elzach 2 weeks ago

Answered by cor-el 2 weeks ago

  • Solved

Firefox wont oad anything even on fresh install

So my Firefox became completely unusable this morning I tried to refresh then reinstall I've had Firefox on this system for 2 years up until today I had as my default for… (read more)

So my Firefox became completely unusable this morning I tried to refresh then reinstall I've had Firefox on this system for 2 years up until today I had as my default for 6 months at this point. I even installed a nightly build to see if that would work no luck if anyone could help me that would be greatly appreciated I really dont wanna go to a chromium browser I have Windows 10 20H2 for my os if anyone wants to know I also use manjaro Linux and Firefox works fine in that os.

Asked by ProphetNoble 4 days ago

Answered by cor-el 4 days ago

  • Solved

Frequent error in rendering after updating to firefox 82

Hello everyone After updating to firefox 82 I am having issues with rendering. After every few minutes the favicons, icons etc stop displaying correctly and someitmes eve… (read more)

Hello everyone

After updating to firefox 82 I am having issues with rendering. After every few minutes the favicons, icons etc stop displaying correctly and someitmes even the content on the page is not displayed properly. Please find image attached. I either have to restart the browser or it starts working again automatically after around 1 minute.

Please suggest how to resolve this. Regards

Asked by sanchit0103 5 days ago

Answered by cor-el 5 days ago

  • Solved

Tab,Minimize,Maximize,Close disappear and come back

Hello. I recently noticed an issue with Firefox. When I open it the first time, no Tab is showing and neither is Minimize, Maximize and Close on the top right. If I close… (read more)

Hello. I recently noticed an issue with Firefox. When I open it the first time, no Tab is showing and neither is Minimize, Maximize and Close on the top right. If I close the browser and reopen it, those 4 things that were missing, come back. I noticed a little bit later, that if I keep closing and reopening it, those 4 things keep disappearing the 1st,3rd,5th,7th,9th time I open the browser after closing it. So, as you see it's like a cycle. Other than this issue I really like Firefox. I've been using Firefox for years.

Asked by ocean-guy 5 days ago

Answered by jscher2000 5 days ago

  • Solved

Crashing after Windows 10 version 2004 update

After latest Windows 10 update (2004 or I don't know firefox is telling me I have Windows_NT 10.0 19041 so who knows) about month ago and after that Firefox keeps randoml… (read more)

After latest Windows 10 update (2004 or I don't know firefox is telling me I have Windows_NT 10.0 19041 so who knows) about month ago and after that Firefox keeps randomly crashing into desktop. It happens about 6-7 times in a hour! 95% of the time even crash report doesn't show up so I can't send my crash report to firefox. I have updated Firefox, downgraded it, disabled all add-ons I have tried that "media.wmf.vp9.enabled" trick and it doesn't work

What to do? I like firefox and I dont want to use Edge or Chrome. Is reinstalling Windows my only option?

Please help

Asked by mail741 1 week ago

Answered by FredMcD 6 days ago