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Firefox Won't Start - Claims it is Already Open

Firefox will not start. It claims to be already running, but that doesn't seem to be the case. I have tried creating a new user profile but when I try to open Firefox no… (read more)

Firefox will not start. It claims to be already running, but that doesn't seem to be the case.

I have tried creating a new user profile but when I try to open Firefox now, the "choose user profile" menu pops up. I have tried the new profile and they old one, and both give the same error message. "Firefox cannot use the profile "Default User" because it is in use. To continue, close the running instance of Firefox or choose a different profile."

There is an entry for firefox.exe in the "details" menu of my task manager, and nowhere else. When I try to end that task, I get the following error: "the operation could not be completed - Access is denied."

Due to some troubleshooting research, I've tried deleting the parent.lock file from my profile folder, but I get this error- "the action can't be completed because the file is open in Firefox."

I tried transferring my bookmarks and preferences from Firefox to Chrome, but I got a similar error suggesting that Firefox was already open and I would have to close it first.

I have also turned off my computer and uninstalled and reinstalled Firefox multiple times.

I'd really rather not lose all of my Firefox bookmarks, add-ons, and preferences. I also prefer using Firefox to Chrome, so if anyone can help me out I'd really appreciate it. I don't know what else to try.

My PC runs Windows 10, by the way.

Asked by jimmyjkjr 5 years ago

Answered by cor-el 5 years ago

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after refreshing firefox, pages do not load properly with windows 10

okay so after I updated firefox with my windows 10 update, everything was fine. but lately I have had issues with certain websites not loading. so after I refreshed firef… (read more)

okay so after I updated firefox with my windows 10 update, everything was fine. but lately I have had issues with certain websites not loading. so after I refreshed firefox to its default settings, uninstalled and re-installed nothing works properly in firefox. ever since I did the refresh its making me mad that nothing is loading. I attached a photo of what my web pages look like. I tried to go to help but everything is messed up on the pages. can anyone help me with this??

Asked by melmelx 5 years ago

Answered by cor-el 5 years ago

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firefox does not load properly

my firefox browser does not load properly. i have updated browser and followed trouble shooting steps to reinstall again . The trouble first started with Yahoo not loadii… (read more)

my firefox browser does not load properly. i have updated browser and followed trouble shooting steps to reinstall again . The trouble first started with Yahoo not loadiing and not showing images and email not loading properly. When i try to open addon pages or any other pages in firefox help they do not load properly .Also i cannot install any add ons for example print edit. I have checked that javascript is enabled and it shows it is enabled as true. I have included screen shots of this problem.

Asked by Paul15 5 years ago

Answered by FredMcD 5 years ago

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Browser lockup loading Youtube Subscriptions page - graphics paint?

I'm having problems loading Youtube in Firefox, both the subscription page and any individual video will freeze for a few seconds whilst everything is loaded in and I won… (read more)

I'm having problems loading Youtube in Firefox, both the subscription page and any individual video will freeze for a few seconds whilst everything is loaded in and I won't be able to scroll or change tab, CPU core max out, fan sometimes comes on. There's basically no delay browsing it in Chrome.

Attached a "Performance snapshot" of the page loading and it seems to stick in 3 places performing "Graphics/paint". These phases seem negligible browsing a page with equivalent number of images (eg. BBC news site).

So I'm wondering if it's due to the website just having an overly complex layout, is a known problem, or if there is something I can do to reduce the load?

Thanks, (Installed Win 10 from scratch last week, all updated, and no extensions to speak of. i5-3230m, gt-650m 2gb/intel HD, SSD)

Asked by lamiejang 5 years ago

Answered by FredMcD 5 years ago

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firefox is constantly stopping , greying out , and not responding when on home page yahoo uk , task manager is only way to stop it , no events no crashes

Latest version of Firefox , always keep up to date .Windows 8.1 running on del optiplex 620 , 2gb ram , 80 gb disk partitioned with Win10 on the other .Running free Pand… (read more)

Latest version of Firefox , always keep up to date .Windows 8.1 running on del optiplex 620 , 2gb ram , 80 gb disk partitioned with Win10 on the other .Running free Panda av and malwarebytes free . Never had any problems with Win 8.1 until now , I have gone back to it because of the many problems with Win 10 . Have checked event viewer , nothing , have checked for crash report , nothing . No malware reported . Every time the only solution is to stop Fox with task manager and then restart when Fox goes back to where it was .

Asked by wjay 5 years ago

Answered by wjay 5 years ago

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After installing Sophos on my Windows 10 PC Firefox does not complete its startup and ceased to work

Windows 10 and Firefox were running well on my (old) windows 10 Compaq pc. After uninstalling eset nod32 and installing Sophos it ceases to really start up. In task man… (read more)

Windows 10 and Firefox were running well on my (old) windows 10 Compaq pc. After uninstalling eset nod32 and installing Sophos it ceases to really start up. In task manager I see Firefox somewhere down below, but it does not complete the startup so I do not see the browser opening. Killing the Firefox instance, reinstalling and restarting it without any add-ons (they were https everywhere, bluehell firewall, CSfire, Click&clean , Privacy Badger) does not do the trick  :-(

Can you help (other than unistalling sophos...) ?

Cheers, Wim

Asked by wimkapteyn 5 years ago

Answered by FredMcD 5 years ago

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Why my Firefox is pixeled?

Today something wear happened, I was in Facebook when firefox freeze then y close it and open again, but when it open everything was pixeled or deformed! I already uninst… (read more)

Today something wear happened, I was in Facebook when firefox freeze then y close it and open again, but when it open everything was pixeled or deformed! I already uninstall it 2 times but nothing change. =(

Asked by Mikelin32 5 years ago

Answered by philipp 5 years ago

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firefox stuck in "connecting..".windows upgraded to 10 from 7.

When I open Firefox,it works fine but after a while,sometimes less,sometimes after few hours or so,it gets stuck with "connecting.."and it won't open a webspage. To make … (read more)

When I open Firefox,it works fine but after a while,sometimes less,sometimes after few hours or so,it gets stuck with "connecting.."and it won't open a webspage. To make it work again,i have to restart the pc or just wait for 30 mins or sometimes more! Edge browser works absolutely fine.It doesn't give me any error message at all! as In the image you can see,it's been at least 30 minutes that nothing is happening!

Asked by rizwan.ull4h 5 years ago

Answered by FredMcD 5 years ago

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Firefox installs in Windows 10 but doesn't work

I've upgraded my 64-bit Windows 7 Pro installation to Windows 10, taking the opportunity (at the same time) to install an SSD and re-installing everything from scratch. I… (read more)

I've upgraded my 64-bit Windows 7 Pro installation to Windows 10, taking the opportunity (at the same time) to install an SSD and re-installing everything from scratch. I have tried (several times) to re-install Firefox, and whilst it appears to install OK, if I click on the Firefox icon to start it I get an error message: "Windows cannot access the specified device, path or file C:\Program Files (x86)\Mozilla Firefox\firefox.exe. You may not have permission to access this file."

I have tried running it with the Windows 10 Firewall both turned off and on - but this didn't make any difference. (My primary Firewall is Kaspersky Total Security.) Edge, Internet Explorer & Opera browsers work OK, but Google Chrome doesn't work either. Is there a clue to the problem here? I hope someone can solve it for me as I prefer to use Firefox over Opera. Thanks for your responses.

Asked by tallboyrip 5 years ago

Answered by FredMcD 5 years ago

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Firefox crashes

I had Waterfox on my computer up until a few days ago. I got a bug. I uninstalled a few programs to reload. When I download waterfox and firefox, I get these messages: Yo… (read more)

I had Waterfox on my computer up until a few days ago. I got a bug. I uninstalled a few programs to reload. When I download waterfox and firefox, I get these messages: Your profile cannot be loaded. It may be missing or corrupted. I cannot find the profile manager in the files. I tried using "run". I have uninstalled it and did a clean boot and installed again: no good. I have windows 10 on an HP Notebook. I have tried most of the fixes I found for this problem but most of them are old fixes. I will appreciate any help you can give because I have found Waterfox is the best browser for me. My computer is a 64bit. Thank you, Marcy

Asked by marcyf2412 5 years ago

Answered by FredMcD 5 years ago

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Firefox not displaying page formatting and not playing videos

HI, I've been having this problem with Firefox for the last two days. It does not display context and formatting of websites like Reddit, Mozilla, and sometimes YouTube. … (read more)

HI, I've been having this problem with Firefox for the last two days. It does not display context and formatting of websites like Reddit, Mozilla, and sometimes YouTube. It has said many times that websites like youtube have an untrusted connection, and shockwave flash crashes. I tried uninstalling , cleaning, and reinstalling Firefox, I tried repairing it also.. I updated java, Flash, and shockwave. Did a complete scan of my computer with my Antivirus and Malwarebytes.

None of these problems are on Chrome or Edge.

Application Basics


Name: Firefox Version: 42.0 Build ID: 20151029151421 Update Channel: release User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:42.0) Gecko/20100101 Firefox/42.0 Multiprocess Windows: 0/1 (default: false) Safe Mode: false

Crash Reports for the Last 3 Days


Report ID: bp-b252c610-e860-4800-bb0e-4ef672151122 Submitted: 3 hours ago

Report ID: bp-cdc8cb59-3c52-45b0-be02-7fb2e2151121 Submitted: 2 days ago

All Crash Reports (including 12 pending crashes in the given time range)

Extensions


Graphics


Adapter Description: Intel(R) HD Graphics 530 Adapter Description (GPU #2): NVIDIA GeForce GTX 960M Adapter Drivers: igdumdim64 igd10iumd64 igd10iumd64 igd12umd64 igdumdim32 igd10iumd32 igd10iumd32 igd12umd32 Adapter Drivers (GPU #2): nvd3dumx,nvwgf2umx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um,nvwgf2um Adapter RAM: Unknown Adapter RAM (GPU #2): 4095 Asynchronous Pan/Zoom: none Device ID: 0x191b Device ID (GPU #2): 0x139b DirectWrite Enabled: false (10.0.10240.16430) Driver Date: 8-24-2015 Driver Date (GPU #2): 11-13-2015 Driver Version: 10.18.15.4279 Driver Version (GPU #2): 10.18.13.5900 GPU #2 Active: false GPU Accelerated Windows: 0/1 Basic (OMTC) Subsys ID: 10391025 Subsys ID (GPU #2): 10391025 Supports Hardware H264 Decoding: false Vendor ID: 0x8086 Vendor ID (GPU #2): 0x10de WebGL Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics 530 Direct3D11 vs_5_0 ps_5_0) windowLayerManagerRemote: true AzureCanvasBackend: skia AzureContentBackend: cairo AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0

Important Modified Preferences


browser.cache.disk.capacity: 358400 browser.cache.disk.filesystem_reported: 1 browser.cache.disk.smart_size.first_run: false browser.cache.disk.smart_size.use_old_max: false browser.cache.frecency_experiment: 2 browser.download.importedFromSqlite: true browser.download.useDownloadDir: false browser.places.smartBookmarksVersion: 7 browser.sessionstore.upgradeBackup.latestBuildID: 20151029151421 browser.startup.homepage_override.buildID: 20151029151421 browser.startup.homepage_override.mstone: 42.0 dom.apps.reset-permissions: true dom.mozApps.used: true extensions.lastAppVersion: 42.0 font.internaluseonly.changed: false gfx.direct2d.disabled: true gfx.direct3d.last_used_feature_level_idx: 0 gfx.driver-init.appVersion: 42.0 gfx.driver-init.deviceID: 0x191b gfx.driver-init.driverVersion: 10.18.15.4279 gfx.driver-init.feature-d2d: true gfx.driver-init.feature-d3d11: true gfx.driver-init.status: 2 layers.acceleration.disabled: true media.gmp-eme-adobe.abi: x86-msvc media.gmp-eme-adobe.enabled: false media.gmp-eme-adobe.lastUpdate: 1448119635 media.gmp-eme-adobe.version: 15 media.gmp-gmpopenh264.abi: x86-msvc media.gmp-gmpopenh264.enabled: false media.gmp-gmpopenh264.lastUpdate: 1448117718 media.gmp-gmpopenh264.version: 1.5.1 media.gmp-manager.buildID: 20151029151421 media.gmp-manager.lastCheck: 1448223560 media.hardware-video-decoding.failed: false network.cookie.prefsMigrated: true network.predictor.cleaned-up: true places.database.lastMaintenance: 1448151756 places.history.expiration.transient_current_max_pages: 104858 plugin.disable_full_page_plugin_for_types: application/pdf,application/vnd.fdf plugin.importedState: true plugin.state.java: 2 plugin.state.np_wtapp: 0 plugin.state.np32dsw: 2 plugin.state.npctrl: 2 plugin.state.npdeployjava: 1 plugin.state.npfoxitphantompdfplugin: 0 plugin.state.npintelwebapiipt: 0 plugin.state.npintelwebapiupdater: 0 plugin.state.npitunes: 0 plugin.state.npspwrap: 0 privacy.sanitize.migrateFx3Prefs: true security.default_personal_cert: Select Automatically security.disable_button.openCertManager: false security.disable_button.openDeviceManager: false security.OCSP.enabled: 0 storage.vacuum.last.index: 0 storage.vacuum.last.places.sqlite: 1448151756

Important Locked Preferences


JavaScript


Incremental GC: true

Accessibility


Activated: false Prevent Accessibility: 0

Library Versions


NSPR Expected minimum version: 4.10.10 Version in use: 4.10.10

NSS Expected minimum version: 3.19.4 Basic ECC Version in use: 3.19.4 Basic ECC

NSSSMIME Expected minimum version: 3.19.4 Basic ECC Version in use: 3.19.4 Basic ECC

NSSSSL Expected minimum version: 3.19.4 Basic ECC Version in use: 3.19.4 Basic ECC

NSSUTIL Expected minimum version: 3.19.4 Version in use: 3.19.4

Experimental Features


Asked by Wicka1 5 years ago

Answered by cor-el 5 years ago

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pages being hijacked by advertising malware

Problem happens on any Web page. Words such as "account, customer, profile, address, Internet, etc" company names and phone numbers ae hi-jacked by adverts. Hovering ove… (read more)

Problem happens on any Web page. Words such as "account, customer, profile, address, Internet, etc" company names and phone numbers ae hi-jacked by adverts. Hovering over the highlighted word pops up an advert. Clicking on the advert opens a new tab showing Url is "s.iktmmny.com/click.........." . Clicking in any input field popsup a new window or a tab with an advert. Closing window or tab show input field as selected.

Asked by BRLNZ 5 years ago

Answered by FredMcD 5 years ago

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Now Firefox only crashes all of the time

Firefox had slowed to a crawl...took advice on support page to delete and rename the "places.sqlite" file in the file manager under Firefox. Now Firefox only crashes all … (read more)

Firefox had slowed to a crawl...took advice on support page to delete and rename the "places.sqlite" file in the file manager under Firefox. Now Firefox only crashes all of the time. guess my decision to go back to explorer has been made for me...can't fix the newest versions of FIrefox hangs up, slow, error messages...now only crashes and the "places.sqlite..old" file I saved is now gone, so cannot even go back to it...

Firefox no longer works at all..?

Asked by croft77 4 years ago

Answered by jscher2000 4 years ago

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Totally useless after updating to version 42. Can't load anything.

Since version 42 it's not showing any website properly. Not even in Safe Mode and even after resetting everything countless times. Even after uninstalling and re-installi… (read more)

Since version 42 it's not showing any website properly. Not even in Safe Mode and even after resetting everything countless times. Even after uninstalling and re-installing it's same. Uninstalled and re-installed version 43; with default settings and all issues are still there.

As you can see in images, there are no problem with internet connection. Everything else is working just fine.

Asked by tranquilknight 4 years ago

Answered by tranquilknight 4 years ago

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Unable to play any flash content in browser

I have cleared caches, uninstalled, reinstalled, searched for any adjustment I could think of that would allow the flash to play. Flash players have been reinstalled, ja… (read more)

I have cleared caches, uninstalled, reinstalled, searched for any adjustment I could think of that would allow the flash to play. Flash players have been reinstalled, java reinstalled. reboooted, rebooted,rebooted. Have turned off all security and it still will not load. Some games even indicate what version of flash is installed but all I get is a plain white screen where the game should be shown. Videos will not load

Asked by lynncaroll 4 years ago

Answered by FredMcD 4 years ago

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Firefox crashes most every time try to close. Started since using windows 10.Tried all remedies.

Tried safemode, retune firefox, turn off LastPass.Diable plugins but,FF crashes most every time close, since updating to windows 10. Please advise. Trouble shooting data … (read more)

Tried safemode, retune firefox, turn off LastPass.Diable plugins but,FF crashes most every time close, since updating to windows 10. Please advise. Trouble shooting data says I have windows xp as operating system...That is incorrect....This laptop I bought new from Dell with windows7

Thanks

Asked by j4872 4 years ago

Answered by cor-el 4 years ago

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My firefox 43.0.2 won't open anymore, even Refreshed & in Safe Mode

Yesterday it opened normally, today it won't, as said above. I tried renaming the Mozilla Firefox to OldFirefox, and clean install, still won't work. When trying to open … (read more)

Yesterday it opened normally, today it won't, as said above.

I tried renaming the Mozilla Firefox to OldFirefox, and clean install, still won't work.

When trying to open in safe mode, window open but then says : Not responding, and it jam like this.

I even tried to report my 5 latest bp- and it still wasn't conclusive.

Any answer somebody?

BTW my computer is a MacBook Pro with Windows 7 32 bits Legit Boot Camp, si maybe it does make a difference.

My Internet Explorer work, thought.

Thanks!!

Asked by g0ld3nb0y 4 years ago

Answered by jscher2000 4 years ago

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YouTube does not load properly in Firefox, but does in other browsers.

Yesterday or the day before, I tried going onto YouTube using Firefox, as I usually do, and this happened (see attached image). I tried clearing the cache and cookies, a… (read more)

Yesterday or the day before, I tried going onto YouTube using Firefox, as I usually do, and this happened (see attached image). I tried clearing the cache and cookies, and restarted my whole computer, and nothing changed. Firefox loads all other websites I frequently use just fine, and Chrome works just fine with YouTube, but for some reason, Firefox and YT are not mixing right now. Anyone have any suggestions?

Asked by JAKQ7111 4 years ago

Answered by cor-el 4 years ago

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Download is taking unbelieveably long and then stops, then starts all over again

The "firefox setup" page with the green bar is taking way too long INFINITE -- Not only does this not work on this new this laptop I bought yesterday, but it also wont do… (read more)

The "firefox setup" page with the green bar is taking way too long INFINITE -- Not only does this not work on this new this laptop I bought yesterday, but it also wont download on my other laptop - 2 years old (same exact situation). So I can say there is something seriously wrong with your link or software.

This computer is running on all new hardware and software. Also, it doesn't work on my other laptop. Furthermore, this never happened with any other program or computer or browser ever in the past.

I am downloading Firefox for a masters program in analytics.

Asked by AdamLaframboise 4 years ago

Answered by cor-el 4 years ago