Resering of Firefox isn't working

Firefox is very slow, sometimes it crashes or can't open. Resering of Firefox isn't working, I've tried 5 times.

Start Firefox in [[Safe Mode|Safe Mode]] to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.
*Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
*Do NOT click the Reset button on the Safe Mode start window
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
*https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration
You can use one of these to start Firefox in [[Safe Mode|Safe Mode]]:
*On Windows, hold down the Shift key while starting Firefox with a double-click on the Firefox desktop shortcut
*On Mac, hold down the Options key while starting Firefox
*Help > Restart with Add-ons Disabled
If you have submitted crash reports then please post the IDs of one or more recent crash reports that have a "bp-" prefix:
*bp-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
You can find the Report ID of recent crash reports on the "Help > Troubleshooting Information" page (about:support).
*Click the "All Crash Reports" button on this page to open the about:crashes page and see all crash reports.
If necessary then you can open about: pages via the location/address bar.
See:
*http://kb.mozillazine.org/Mozilla_Crash_Reporter
*https://support.mozilla.org/kb/Mozilla+Crash+Reporter

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Firefox isn't working but I can't delete it to reinstall

I accidentally deleted Firefox. I did a system restore to get it back but although it's listed in my programs it isn't working. I tried to delete it again to reinstall a fresh Firefox but now it will not uninstall from my programs.

Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".
If this does not help, contact Apple.
Best.

FireFox isn't working right on my Mac. Sometimes it won't load at all( says server not found) and sometimes pics and video won't load. If I switch to IE or safari it works fine.

I just got a Mac ( I have always had a pc) and I loaded the most update version of Firefox on it. Many times during the day I will go to a website and it will get a "Server not found" message. I can't refresh the page and fix it, but if I go to IE or Safari the webpage shows up fine. It's not just the webpage cause it is never the same one and it can happen to any site. Also when using Firefox there are many times when I go to a page and not all the pics load or if there is a video on the page the video doesn't load. Again if I then go to IE or safari everything is there and works fine. I have uninstalled and reinstalled FireFox and nothing changed. I cleared my cache, cookie, history and still nothing. I love firefox so this is really frustrating. Any help please.

Did you ever fix this, because I am having the same problem

Firefox isn't working correctly with ebay completed items

I sell on ebay. When I go to search for anything, then choose "completed items", there is a light blue box on the left that takes up over 1/4 of the screen width and the entire length of the page. If I try and scroll down, it switches to the right side and covers all of the category lists and photos. I've rebooted my computer, cleared cache/history, have the most recent versions of adobe reader and java and i have firefox 7.0.1. i tried the same thing using explorer and it works correctly. i called ebay and they don't have the problem on their end. i don't know what else to do to stop this problem. it just started today. the box is completely blank, no way to close it out. tammy parker

http://support.mozilla.com/en-US/kb/Installing+a+previous+version+of+Firefox
http://www.mozilla.com/en-US/firefox/all-older.html

Firefox isn't working, internet explorer isn't working, google chrome is working. why? how do I restore firefox to also work?

As of this morning, FF and IE aren't working (unable to pull up google, my email server, etc.). The only browser working is google chrome, which is fine but I would like the others to work also.

Do a malware check with several malware scanning programs on the Windows computer.
Please scan with all programs because each program detects different malware.
All these programs have free versions.
Make sure that you update each program to get the latest version of their databases before doing a scan.
*Malwarebytes' Anti-Malware: http://www.malwarebytes.org/mbam.php
*AdwCleaner: http://www.bleepingcomputer.com/download/adwcleaner/ http://www.softpedia.com/get/Antivirus/Removal-Tools/AdwCleaner.shtml
*SuperAntispyware: http://www.superantispyware.com/
*Microsoft Safety Scanner: http://www.microsoft.com/security/scanner/en-us/default.aspx
*Windows Defender: http://windows.microsoft.com/en-us/windows/using-defender
*Spybot Search & Destroy: http://www.safer-networking.org/en/index.html
*Kasperky Free Security Scan: http://www.kaspersky.com/security-scan
You can also do a check for a rootkit infection with TDSSKiller.
*Anti-rootkit utility TDSSKiller: http://support.kaspersky.com/5350?el=88446
See also:
*"Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked
*https://support.mozilla.org/kb/troubleshoot-firefox-issues-caused-malware

Windows Media Player 11 is needed for video on fav website, but version for firefox isn't working. Is this a compatability problem with Windows 7?

My favorite jewelry website requires a plug-in to operate. Installation of the plug-in is offered, but will not download and function. Is this a compatibility problem for Windows 7?

Link to that site please.

A toolbar called Searchqu got installed in my web browsers.I uninstalled Mozilla Firefox without removing the toolbar and it stopped working saying that can't connect to the server.I uninstalled and installed Firefox but it isn't working.

A toolbar called Searchqu got installed in my web browsers.I uninstalled Mozilla Firefox without removing the toolbar and it stopped working saying that can’t connect to the server.I uninstalled and installed Firefox but it isn’t working.

See this thread for potential ways of removing Searchqu from your system: https://support.mozilla.com/en-US/questions/790833

My cursor isn't working on Firefox so I can't scroll down - I must manually hold vertical bar to move page - I've already tried troubleshooting - helped temporarily, but still problem now - cursor otherwise works on other servers

My cursor isn't working on Firefox, so I can't scroll down - I must manually hold the vertical bar to move page.

I have had this nagging problem several times. Each time more frustrating than the last.
'''PDF''''s. If you have a .pdf page open in Firefox (as often happens when looking at brochures and whatnot from websites) the mousepad side scroll function will not work. Plugging in an external usb device works just fine, making the situation that much more aggravating.
Simply close any windows or tabs from Firefox that are displaying .pdf's, and the blood pressure "should" return to normal values. If your blood pressure doesn't return to a satisfactory value, see your family doctor. He'll probably ensure your continued trust in Firefox is still better than any experience with explor.er.

Firefox no longer works and I can't seem to get it fixed

Over the past week, firefox has stopped working on both my windows xp machine and a windows Vista machine. it tells me I need to restart the computer to allow an upgrade to occur. I have tried the solution on the website to find and delete xpicleanup.dat, but it isn't working. I can't uninstall it, and I can't install a new version. Please help

You'll actually need to order a snow leopard DVD first. Then you can download mountain lion via the app store. Confirm you meet the requirements: http://www.apple.com/osx/specs
If you dont, you might be able to get lion instead. That's an order over the phone, to get a redemption code.
And make sure you're actually contacting apple: http://support.apple.com/kb/HE57
You'll also want to confirm your 3rd party apps are compatible before an OS upgrade. Of course, you'll also want to backup your data.
Message was edited by: Imp68

I have a mac computer and since it did the updates, my browser isn't working. How do I fix this?

My mac computer did an update with the Lion software, since then, the browser isn't working at all. How do I fix this?

'''Try the Firefox Safe Mode''' to see how it works there. The Safe Mode is a troubleshooting mode, which disables most add-ons.''
''(If you're not using it, switch to the Default theme.)''
* You can open the Firefox 4.0+ Safe Mode by holding the '''Shift''' key when you use the Firefox desktop or Start menu shortcut.
* Or use the Help menu item and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
''Don't select anything right now, just use "'Start in Safe Mode"''
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before using the Firefox shortcut (without the Shift key) to open it again.''
'''''If it is good in the Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one.
Please follow the [[Troubleshooting extensions and themes]] article for that.
''When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.''

Hp officejet pro8500 a910 shoots out blank paper when trying to print from windows 10 installed firefox. Printer works fine from chrome and ie.

I am beta testing windows 10. I use both a hp laptop (dv77128nr) and a desktop (home made). I use a hp officejet pro8500 a910 printer.
When using firefox I get only blank pages while trying to print from within the browser. Only using firefox. Chrome works fine. IE works fine. If I boot to windows 7, firefox works fine. Can you help or should I report this to Microsoft?
Thanks for your help.
ps. Tried resetting firefox. Haven't tried a new install.

Firefox isn't officially supported on Windows 10. For that matter, Windows 10 isn't officially supported either. This is most likely a problem between Firefox, Windows 10, and your printer's driver. Try updating your printer's driver and see if that helps. Otherwise, it might be a good idea to post this on Microsoft's forums as well.

Browser Install Fails, it says "Firefox has stopped working" and it does not install. I cant use your browser.

I had few issues with Mozzilla browser so i uninstalled it completely and tried to re install it again. But when i try to reinstall it , it does not install fully , it breaks half way and says, Firefox has stopped working. I cant install Firefox now. Can you help.

Try this instead:
*Download the full Firefox installer and save the file to the desktop http://www.mozilla.org/en-US/firefox/all.html
*Start the installation with a double-click on the desktop icon
Make sure that your security software isn't causing problems.
Boot the computer in Windows Safe mode with network support (press F8 on the boot screen) as a test to see if that helps.
*http://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/

Firefox dumped me out. I uninstalled and tried to re-install, but now it won't re-install. I assume Microsoft Explorer is somehow sensing this and dumping me. Firefox used to work perfectly until recently. How can I re-install?

I downloaded Firefox and it worked perfectly for awhile. It then dumped me out and my screen showed a blue background with a "critical error" message. It kept dumping me out, so I uninstalled Firefox and tried to re-install. Now it won't even re-install. As the re-install process almost finishes, I get dumped and the same "critical error" screen appears. I assume there is something with Microsoft or Explorer that is sensing what I'm trying to do and stopping me. How can I get Firefox to download again?

I love a good anti-Microsoft story, but this isn't likely to be Redmond Sabotage.
If you got a blue screen, you might be near the end of this computer (dying hardware) or need to reinstall your OS (reinstall Windows). Windows gets "clogged" and needs reinstalled ever six months to a couple years, depending on your use. System restore might help you here.
You might have malware that's trashed critical system files (or just corrupted something which should be removed with a Firefox uninstall but can't), but [http://www.google.com/#q=blue+screen+of+death the blue screen is never a good sign]. System restore may or may not help in that case.
Try installing something else and see if it succeeds. [http://openoffice.org/ Open Office] is a great application suite, though it's a bit large to download. [http://www.safer-networking.org/en/download/ SpyBot] is only around 17MB IIRC.
Best of luck!

My custom protocol handler isn't working after upgrading from 3.0

Redhat Enterprise Linux 4
Firefox 3.6.7. Updated via RedHat Network.
I'm trying to add a custom protocol handler (gdc) to Firefox. This worked in 3.0 and earlier. Now I'm getting "Firefox doesn't know how to open this address, because the protocol (gdc) isn't associated with any program." errors.
Tried adding network.protocol-handler.app.gdc string with valid path. Didn't work. Went to #firefox irc.mozilla.org and was recommended that I add network.protocol-handler.expose.gdc and set it to false. I still get the error.

Hi There,
Yep I can confirm that I am having problems with wifi as well.
My problem is that it is not re-joining known networks.
Also the auto login feature designed for hotspots does not seem to work well either. The Log In Screen slides up then an error keeps repeating on the page...."Error Opening Page - The page could not be opened because an error occurred"

Firefox isn't saving my tabs

I need to start off with the warning that I have no clue what I'm doing and the work I've done so far was based on other people's advice or information I found on MozillaZine. This problem started after I downloaded the latest version of Firefox.
So... Firefox isn't saving my tabs and I think I know why, but I'm not 100% sure. (I have it saved that I want to restore my previous session whenever I open Firefox.) I went to about:config and went to look for browser.sessionstore.enabled to see if that was messed up, but the file wasn't even there. Obviously, I'm assuming that's the problem. If anyone could tell me if it sounds like I'm on the right track that would be great.

The pref [http://kb.mozillazine.org/browser.sessionstore.enabled browser.sessionstore.enabled] is no longer used in Firefox 3.5 and later (bug 449596).
Remove that pref if you still have it via the right-click context menu and choose Reset.
Check that Session Restore is enabled.
You can look at the 'browser.sessionstore' prefs on the '''about:config''' page and reset prefs that show as bold (user set).
http://kb.mozillazine.org/browser.sessionstore.max_tabs_undo
http://kb.mozillazine.org/browser.sessionstore.max_windows_undo
http://kb.mozillazine.org/browser.sessionstore.resume_from_crash
If you use [[Clear Recent History]] in Firefox 3.5/6 or [[Clearing private data|Clear Private Data]] in Firefox 3 to clear the 'Browsing History' when Firefox is closed then restoring tabs from the last session (e.g. "Save & Quit" or "Show my windows and tabs from last time") doesn't work.

Resering of Firefox isn't working

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