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  • Gearchiveerd

Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system."

I keep getting the message "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your sy… (meer info)

I keep getting the message "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system."

I have tried uninstalling and reinstalling. Deleting and reinstalling. Installing on a different drive, etc. It was working fine, then one day, that is all it will say. I'd tried making sure the folder isn't read only. I've also looked for the parental lock folder to delete (and shown hidden files), but it does not exist on any installation that I've done. Running out of solutions aside from the idea that maybe firefox is just broken.

I've also scanned for malware (malwarebytes), spyware (spybot) and done virus scans (AVG Free 2015).

Had a similar problem with IE, but have gotten it fixed by uninstalling and using windows update to update step by painful step from 9 to 11, and remaking my stupid icon.

Windows 7 SP1 Ultimate with all updates. Very nice hardware (but still a slow boot), which makes me still suspect malware of some type, or maybe AVG deleting something important.

Gevraagd door braingamer47, 5 jaar geleden

Laatst beantwoord door spaarks, 5 jaar geleden

  • Gearchiveerd

Some videos on YouTube are not working

Vevo or any other official music videos are not playing in Firefox. After loading for 10 seconds, I am getting "An Error occurred" error. I don't have this problem with o… (meer info)

Vevo or any other official music videos are not playing in Firefox. After loading for 10 seconds, I am getting "An Error occurred" error. I don't have this problem with other videos. This problem occurred yesterday, although I didn't do any system changes or software updates during the day. In Internet Explorer 11 which using HTML5 Player by default, those videos are starting to play but only after 10 seconds load and not immediately like other videos. When forcing HTML5 Player in Firefox those videos are starting to play after 10 seconds load like in IE but HTML5 Player is very instable in Firefox. Software wise everything is up to date and I already reinstalled both Firefox and IE but the problem is still there. Even System Restore didn't help. Net research also didn't bring any solutions.

Gevraagd door United123, 5 jaar geleden

Laatst beantwoord door guigs, 5 jaar geleden

  • Gearchiveerd

Why is my Personal Computer very slow to open browsers?

Firefox and my I.E. 11 Browsers are both very slow most of the time & getting slower. Firefox is very slow to open, hangs, won't respond for a few seconds, etc. I al… (meer info)

Firefox and my I.E. 11 Browsers are both very slow most of the time & getting slower. Firefox is very slow to open, hangs, won't respond for a few seconds, etc. I also see a message at times, right above address bar that reads "Mozilla Firefox (not responding)". I have done a refresh of Firefox, started in safe mode, etc. with no increase in performance. I've also cleaned the S.S.D. (solid state drive) (disk cleanup). Please help!

Gevraagd door hgw53t, 2 jaar geleden

Laatst beantwoord door Pj, 2 jaar geleden

  • Gearchiveerd

Firefox freezes whilst scrolling down on Facebook, and a bit more

Well, I have some problems with Firefox. Firstly, it freezes for 2-3 seconds when I try to scroll down so that new content would appear on the page. Secondly, Firefox mak… (meer info)

Well, I have some problems with Firefox. Firstly, it freezes for 2-3 seconds when I try to scroll down so that new content would appear on the page. Secondly, Firefox makes error whilst watching a stream on Twitch.tv and it was something like "stop plugin or continue". (I am not sure about the details) And ultimately, Firefox is literally way slower than Chrome as far as I experienced. Despite not freezing, scrolling down/up on the other websites, like Reddit, is still a hideous experience for me on these last versions of Firefox. (I think these problems started after Firefox 2 firstly, yet it accumulated until today and it is unbearable right now for me.)

Anyway, I am on the verge of uninstalling Firefox because of these speed/crash issues all the time I encounter. I really really need help. Thanks so much!

By the way, my laptop has:

Intel i5 4200m cpu @ 2.5 ghz 8.00 gb ram nvidia geforce gt 740m

And I have AdBlock, Last Pass add-ons on my browser.

Gevraagd door waspandwasp, 5 jaar geleden

Laatst beantwoord door FredMcD, 5 jaar geleden

  • Gearchiveerd

New Quantum browser locks up and is unuseable

New Quantum browser upgrade loaded automatically yesterday and now is unusable as it locks up halfway through loading home page. Using Windows 7. I uninstalled Firefox … (meer info)

New Quantum browser upgrade loaded automatically yesterday and now is unusable as it locks up halfway through loading home page. Using Windows 7. I uninstalled Firefox and reinstalled new download from Mozilla, still same - unable to use so now I am having to use Chrome browser. One thing I do note in task manager processes, it shows four different processes for firefox, and same for Chrome.

Gevraagd door lateba, 2 jaar geleden

Laatst beantwoord door bravedog, 2 jaar geleden

  • Gearchiveerd

When I try to start Waterfox, Firefox loads anyway. I have them both and want to use Waterfox when I don't need my Norton Toolbar. How do I make it work?

I suppose I need two profiles, one for Firefox, one for Waterfox. What is the best way to accomplish this without creating a mess. I have installed both, and want to b… (meer info)

I suppose I need two profiles, one for Firefox, one for Waterfox. What is the best way to accomplish this without creating a mess. I have installed both, and want to be able to use both, simultaneously if possible.

I did find the article on Using the profile manager to create.... at https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

but it's not enough to move forward confidently. Right now, the default seems to be firefox. attempts to load waterfox load firefox.

Thank you. BTW, I have all my plugins on "Ask first". Incredible change in speed, and no more 'hang's' and crashes.

Gevraagd door Tom, 6 jaar geleden

Laatst beantwoord door Wesley Branton, 6 jaar geleden

  • Gearchiveerd

Firefox has become absurdly slow opening webpages. Can take a minute + to load. Please help.

This started over a week ago. I try to link to a webpage (either from a link on another page, a bookmark or an email) and I can end up waiting for over a minute for the p… (meer info)

This started over a week ago. I try to link to a webpage (either from a link on another page, a bookmark or an email) and I can end up waiting for over a minute for the page to load. I have checked my PC's Internet speed (excellent), malware and viruses (none), firewall issues (none - in fact, the problem persists even with the firewall completely disabled), I've even upgraded my modem (no change). The problem affects Firefox and also Chrome and IE. It does *not*, however, affect my laptop or notebook. I'm at wits end at this point and any other ideas to fix this would be appreciated.

Gevraagd door Alikhat, 5 jaar geleden

Laatst beantwoord door afirefoxuser, 5 jaar geleden

  • Gearchiveerd

Low performance on a certain page

There is this page: http://myanimelist.net/animelist/mohas that shows lack of performance specially when scrolling, I first thought it is because of the fixed background,… (meer info)

There is this page: http://myanimelist.net/animelist/mohas that shows lack of performance specially when scrolling, I first thought it is because of the fixed background, but fixed backgrounds are OK in other sites. Is this normal? It would be great if I at least knew what is wrong with it.

Thank you

Gevraagd door mohas, 6 jaar geleden

Laatst beantwoord door Wesley Branton, 6 jaar geleden

  • Gearchiveerd

How do I fix unresponsive scripts on FF33

Last day, on many websites the whole firefox just get stuck and then shows unresponsive scripts. When I was looking for answers here, i've got it too with unresponsive wi… (meer info)

Last day, on many websites the whole firefox just get stuck and then shows unresponsive scripts. When I was looking for answers here, i've got it too with unresponsive wiki-min.js?build=5ad5886:1. I really think it has something to do with upgrate to FF33 since it never happened before and it's ok in IE and Chrome. So, what to do with it?

Gevraagd door igamenir, 5 jaar geleden

Laatst beantwoord door cor-el, 5 jaar geleden

  • Gearchiveerd

Firefox slow and laggy after updating to Firefox 51

Hello, I have yet another problem to talk about. Today, I updated from Firefox 50.1 to Firefox 51. It's been really slow and buggy ever since. Can anyone help me on the i… (meer info)

Hello, I have yet another problem to talk about. Today, I updated from Firefox 50.1 to Firefox 51. It's been really slow and buggy ever since. Can anyone help me on the issue? I would really appreciated it.

Gevraagd door sabbath99, 3 jaar geleden

Laatst beantwoord door cor-el, 3 jaar geleden

  • Gearchiveerd

tried to install a ID masking program. Deleted it but now times out on every bookmarked web site. Uninstaled Firefox then reinstalled but get same problem. HELP

If I type in a search it will give me a page but will time out when I try to go to the site. It will time out when starting, will not go to my homepage. No problems that … (meer info)

If I type in a search it will give me a page but will time out when I try to go to the site. It will time out when starting, will not go to my homepage. No problems that I noticed before Mask program install.

Gevraagd door Echo5, 5 jaar geleden

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  • Gearchiveerd

Firefox crashes and does not shut down when closed

Windows 10, Firefox 66.0.1 crashes and does not shut down when closed, with these 2 error messages: 1) Mozilla Crash Reporter (all boxes are checked) When browser is reop… (meer info)

Windows 10, Firefox 66.0.1 crashes and does not shut down when closed, with these 2 error messages: 1) Mozilla Crash Reporter (all boxes are checked)

When browser is reopened another error message appears: 2) Close Firefox: Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window.

This appears even after a long delay before restarting Firefox. I have gone through the suggested list of fixes, with no effect.

Crash reports THIS YEAR, older ones date to Feb 2018 : There has been ZERO contact from Mozilla about these reports. bp-a7bc6424-38eb-4584-989e-7d1f80190324 3/24/2019, 12:48 PM View bp-3d058cea-c9e6-475e-bcf3-181390190324 3/24/2019, 12:34 PM View bp-ea5e178b-b5ac-4dcd-9f54-482180190324 3/24/2019, 12:04 PM View bp-df4ec509-cd35-4781-892a-956260190324 3/24/2019, 11:20 AM View bp-68f73f30-afcc-4a4d-905d-d04ae0190324 3/24/2019, 11:08 AM View bp-f2c2eb46-48c5-4c19-b8e1-c8b290190321 3/20/2019, 9:01 PM View bp-ceeb9796-5c8e-49c2-b3d5-842710190317 3/17/2019, 2:21 PM View bp-0229454e-ff31-4c2e-b8b5-ff61e0190317 3/17/2019, 12:53 PM View bp-3c0749fc-5ae3-4270-8caa-f4cc50190316 3/16/2019, 1:27 PM View bp-e6bae4ff-162f-43b4-8c95-add040190316 3/16/2019, 1:15 PM View bp-1af67eef-dd20-41c2-a9ab-20dc30190316 3/16/2019, 10:37 AM View bp-cac7dcac-6905-4047-8168-903df0190316 3/16/2019, 10:21 AM View bp-7ef55f1a-c112-4274-bd5c-e583b0190315 3/14/2019, 9:32 PM View bp-b001c84b-0af8-40b7-9f03-aef040190314 3/14/2019, 6:19 PM View bp-f4ff9526-b972-42a0-8ed5-056780190314 3/14/2019, 7:36 AM View bp-d4ba761f-2b95-4d4e-8d34-ff6fb0190312 3/12/2019, 6:24 AM View bp-e49763df-0553-4add-8663-d6fcd0190311 3/11/2019, 5:20 PM View bp-9fd42285-e5b7-4e4d-840b-527350190311 3/11/2019, 4:56 PM View bp-8573242f-583e-44a9-be8d-abfa90190303 3/2/2019, 7:06 PM View bp-21beab5b-544f-4dea-842f-f26260190301 2/28/2019, 10:38 PM View bp-182b3e0c-04d4-40f5-94ca-1f5a90190301 2/28/2019, 10:08 PM View bp-72db14ff-0ff5-48b8-bb01-e803e0190227 2/26/2019, 7:58 PM View bp-5d905533-7f25-4041-bb20-3602a0190225 2/25/2019, 8:11 AM View bp-b2a6161b-df17-4c92-bd8a-1df390190225 2/25/2019, 8:10 AM View bp-0ac7a875-0eae-4cad-9705-951390190224 2/24/2019, 11:21 AM View bp-ee153af5-da1c-4685-93c4-ab2fa0190223 2/23/2019, 5:55 PM View bp-bd6abde9-a9dd-4364-853c-293390190223 2/23/2019, 5:47 PM View bp-50b03a98-f076-4658-9b56-9326d0190223 2/23/2019, 2:09 PM View bp-b6de254f-259a-4e0e-a64a-24f400190221 2/20/2019, 9:52 PM View bp-1bc0c1a9-4925-4fdf-82e1-2c8fa0190219 2/18/2019, 7:13 PM View bp-6289dca9-bde1-455f-96e9-c84270190217 2/17/2019, 5:29 PM View bp-d3654e50-580b-4455-8faa-9426f0190217 2/17/2019, 4:00 PM View bp-13fa38b6-5ea2-46d5-bd6d-99a880190217 2/17/2019, 3:42 PM View bp-7e975766-9366-43b4-88f0-755ea0190217 2/17/2019, 3:32 PM View bp-10366729-cfa4-4d68-8217-5474f0190217 2/17/2019, 3:27 PM View bp-a44507a2-db63-4571-9800-897c00190217 2/17/2019, 3:23 PM View bp-8e0d3faa-aae2-432b-aca6-afb8b0190217 2/16/2019, 8:31 PM View bp-5605cad2-4bf3-4a75-87fb-fe99f0190216 2/16/2019, 10:48 AM View bp-93d9cb58-669d-4a98-b9f1-ffec50190216 2/15/2019, 10:26 PM View bp-9f763578-dad2-4440-9fc5-2cc3c0190216 2/15/2019, 10:15 PM View bp-ede2137c-6802-416b-9d73-aa5530190216 2/15/2019, 10:15 PM View bp-f0a095e6-4f1c-455d-a15d-31e480190216 2/15/2019, 10:15 PM View bp-9c772a93-0e7c-4e2e-b4f7-e18d30190216 2/15/2019, 10:15 PM View bp-612f308e-4b69-4d4f-b898-d402a0190216 2/15/2019, 10:15 PM View bp-953e7d65-7058-4146-9914-d2ea10190216 2/15/2019, 10:15 PM View bp-fce3816d-8c0d-4f95-81d1-e1b790190216 2/15/2019, 10:15 PM View bp-65ca84ba-c216-4826-a59d-a1dcc0190216 2/15/2019, 10:15 PM View bp-cab01958-987e-4c50-9734-bd2fe0190216 2/15/2019, 10:15 PM View bp-19cbf0f3-37f4-4010-9e4d-c65490190216 2/15/2019, 10:13 PM View bp-b34453c8-f9fa-4616-ae6f-228be0190209 2/9/2019, 3:45 PM View bp-4f30ece9-de33-4de2-8117-cc7be0190207 2/7/2019, 12:28 AM

Gevraagd door subi10, 1 jaar geleden

Laatst beantwoord door TC Harp, 10 maanden geleden

  • Gearchiveerd

firefox hangs once each morning but at no other times of the day

I innitially thought that this was due to problems with the places directory, so i forced the creation of a new one (as detailed here https://support.mozilla.org/en-US/kb… (meer info)

I innitially thought that this was due to problems with the places directory, so i forced the creation of a new one (as detailed here https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding#w_create-a-new-places-database)

Unfortunately as they are hangs rather than crashes I don't have crash reports or equivalent. Does anyone have any idea how i can fix this?

Gevraagd door alethiadoxy, 2 jaar geleden

Laatst beantwoord door Shadow110, 2 jaar geleden

  • Gearchiveerd

Firefox using very high amounts of memory and locking up.

It's not letting me upload the pics on this form so I put them here: https://imgur.com/a/y05qiAC Over the past month I have been noticing that Firefox just absolutely run… (meer info)

It's not letting me upload the pics on this form so I put them here: https://imgur.com/a/y05qiAC

Over the past month I have been noticing that Firefox just absolutely runs wild with memory allocation. If you look at these screenshots you can see it hogging over 17GB of ram...

Over the weeks I have tried a few things, one of them was a clean reinstall with no existing profile folder. Is there a way for me to limit the maximum amount of usable ram or find out what exactly is doing this?

Gevraagd door slayerh4x, 1 jaar geleden

Laatst beantwoord door cor-el, 1 jaar geleden

  • Gearchiveerd

somthing is running in the background

The blue circle constantly flickers - telling me there is something running in hte back ground. this causes the computer to be slow and videos and graphics are very slow… (meer info)

The blue circle constantly flickers - telling me there is something running in hte back ground. this causes the computer to be slow and videos and graphics are very slow to open - if at all.

Gevraagd door bfpapa6, 5 jaar geleden

Laatst beantwoord door cor-el, 5 jaar geleden

  • Gearchiveerd

how to increase mozilla firefox uploading speed?

I am working on a website. This site is very very Busy. More then 60,000 user hit this website at a time.There are any tips or tricks to hit this website directly and av… (meer info)

I am working on a website. This site is very very Busy. More then 60,000 user hit this website at a time.There are any tips or tricks to hit this website directly and avoid busy message ?

Gevraagd door hasanssc, 5 jaar geleden

Laatst beantwoord door Seburo, 5 jaar geleden

  • Gearchiveerd

firefox wont open please help

Problem signature: Problem Event Name: APPCRASH Application Name: firefox.exe Application Version: 32.0.3.5379 Application Timestamp: 54224e2c Fault Module Name: ntd… (meer info)

Problem signature:

 Problem Event Name:	APPCRASH
 Application Name:	firefox.exe
 Application Version:	32.0.3.5379
 Application Timestamp:	54224e2c
 Fault Module Name:	ntdll.dll
 Fault Module Version:	6.1.7601.18247
 Fault Module Timestamp:	521ea91c
 Exception Code:	c0000005
 Exception Offset:	00052df6
 OS Version:	6.1.7601.2.1.0.768.3
 Locale ID:	1033
 Additional Information 1:	b4c7
 Additional Information 2:	b4c74252b02ba14273a3332638c80d68
 Additional Information 3:	71f9
 Additional Information 4:	71f9f4f54ef467b85417e0805553db89

Read our privacy statement online:

 http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409

If the online privacy statement is not available, please read our privacy statement offline:

 C:\Windows\system32\en-US\erofflps.txt

Gevraagd door craigbohling, 5 jaar geleden

Laatst beantwoord door FredMcD, 5 jaar geleden

  • Gearchiveerd

Why does firefox slow down or not respond when I check my yahoo account?

Nothing seems to fix this problem, even the new Firefox update. It's very frustrating and I hate to go back to using internet explorer, but may be forced to. It's like fi… (meer info)

Nothing seems to fix this problem, even the new Firefox update. It's very frustrating and I hate to go back to using internet explorer, but may be forced to. It's like firefox "not responding" to yahoo. Please help!

Gevraagd door drmike922, 5 jaar geleden

Laatst beantwoord door FredMcD, 5 jaar geleden