I have always used firefox for just about everything! incl. I go to my xfinity email acct. suddenly, I cannot access my inbox!

I go to 'email ' from the main firefox page as usual, but now cannot open my new mail

Clear the cache and the cookies from sites that cause problems.
"Clear the Cache":
*Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"
"Remove Cookies" from sites causing problems:
*Tools > Options > Privacy > Cookies: "Show Cookies"
'''Try Firefox Safe Mode''' to see if the problem goes away. 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 Firefox 4.0+ in Safe Mode by holding the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* Or open the Help menu and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
''Once you get the pop-up, just select "'Start in Safe Mode"''
'''''If the issue is not present in 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.
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
''When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.''
You can check for problems caused by recent Flash updates and try these:
*disable a possible RealPlayer Browser Record Plugin extension for Firefox and update the RealPlayer if installed
*disable protected mode in Flash 11.3 and later
*disable hardware acceleration in the Flash plugin
*http://kb.mozillazine.org/Flash#Flash_Player_11.3_Protected_Mode_-_Windows
*http://helpx.adobe.com/flash-player/kb/common-problems-flash-player.html

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Several sites will not respond any longer when I type or click on them. I have been using Firefox for years and all of a sudden, nothing.

I have been using Firefox for many years now and have been going to several sites on Firefox. Now, after an update around two days ago, I can't do anything with the sites. The cursor stays an arrow, and doesn't click anything. It's like a blank page with print on it.
I've tried almost everything, but to no avail. It's too much to copy and paste below.
Any ideas or help would be very much appreciated.
Also, http://tesnexus.com is another site, plus a few others, besides google.com.

Hi Papajack55,
I'd try starting Firefox in [[Safe Mode]]. If you don't have the issue while all of your add-ons, extensions, and themes are disabled, you can try adding them back in one by one until you find the culprit. You should look at the [https://support.mozilla.org/en-US/kb/Troubleshooting-extensions-themes Extensions and Themes troubleshooting guide ] and the [[Troubleshooting plugins]] article as well.
Hopefully this helps!

Firefox.exe has encountered a problem and needs to close. We are sorry for the inconvenience. I have been using firefox for years. I installed the latest version of Firefox. It worked fine for several days. Now I get the above message each time I try to s

firefox.exe has encountered a problem and needs to close. We are sorry for the inconvenience.
I have been using firefox for years. I installed the latest version of Firefox. It worked fine for several days. Now I get the above message each time I try to start Firefox, even in safe mode. i have checked with latest antivirus softwere also.. i didn't find any thing suspicious.
== This happened ==
Every time Firefox opened
== after loading firefox 3.6.6 ==
== User Agent ==
Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.99 Safari/533.4

I was having this problem few days ago,and I have fixed.Try this steps-If you have AVG antivirus so go on firefox>Tools>Add On and Disable AVG safe search and AVG tool bars too.Then restart computer.

Hello I am having all of a sudden with my Face Tiime on MacBook Pro. I can't get it to verify my email address with I have always used. For some reason it had me log back in and now won't verify.It's always worked. No one can reach me. It goes straig

Hello I am having all of a sudden with my Face Tiime on MacBook Pro. I can't get it to verify my email address with I have always used. For some reason it had me log back in and now won't verify.It's always worked. No one can reach me. It goes straight to my phone instead of my MacBook Pro. Help!!

Any error message?

I have been using firefox for a long time, today when i tried to launch firefox i recieved "Firefox is configured to use a proxy server that is refusing connections." i dont know how to fix this. I didnt change any settings.

I have been using firefox for a long time, today when i tried to launch firefox i recieved "Firefox is configured to use a proxy server that is refusing connections." i dont know how to fix this. I didnt change any settings, im the only person who uses this computer

You can find the connection settings in Tools > Options > Advanced : Network : Connection 
If you do not need to use a proxy to connect to internet then select "No Proxy"
See "Firefox connection settings":
* [[Firefox cannot load websites but other programs can]]

Can not connect to the internet. This is a new problem since I have been using firefox for years.

I can not connect to the internet. I called mediacom due to the problem and they connected me to internet explorer. They indicated I should contact you for help in connecting to the internet. It appears firefox has made some kind of change since last night since I was using firefox for my internet connection last night. Something has changed. Your help will be appreciated.

http://en.wikipedia.org/wiki/Keyhole_Markup_Language
The only way that file opens thru IE8 for me ''(but not actually in IE8)'' is by using the Zip Utility (then IE closes) that is in WinXP and then opening the two image files in the Windows Fax and Picture Viewer.
I think Firefox is trying to display that file because the MIME-type is for '''''text/plain''''' instead of the appropriate MIME-type of '''application/vnd.google-earth.kml+xml''' or '''application/vnd.google-earth.kmz'''
That is something that needs to be configured in the server that is hosting that file type. Sorry, I don't know how that can be fixed. The one support person here that might know lives in Europe ''(I believe)'', so you might need to wait for an answer.

I understand the latest version cannot be protected by "Avast" antivirus. Is this correct? I have stopped using firefox for this reason.

I understand the latest version of firefox cannot be protected by Avast antivirus. Is this true? I have stopped using firefox until it can accommodate avast.

You can look at the new pre-release version of Avast.
*http://forum.avast.com/index.php?topic=80362.0

I have always used Firefox to make Jibjab videos. Now after creating video it no longer previews or finalizes video. If I use IE everything works fine.

I have gone through the Jibjab support site, tried all options they supplied with no success. All of my firefox plugins are up to date including flash, java and silverlight. This problem probably started 4 - 5 months ago. I can always go through IE, but IE is not my default browser. Also, once I make a new jibjab video using IE and finalize it, I can then use firefox to view that new video as well as all of my old ones created. It only hangs up when trying to create a new video. I get no error messages when trying to make a jibjab video. I add all my heads and when clicking on preview or done I basically get a blank page with only headers showing as if it is about to perform the next action but then just stops. It has only been on the jibjab site that I find this happening and they have not been able to solve the problem.

Clear the cache and the cookies from sites that cause problems.
"Clear the Cache":
*Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"
"Remove Cookies" from sites causing problems:
*Tools > Options > Privacy > Cookies: "Show Cookies"
'''Try Firefox Safe Mode''' to see if the problem goes away. 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 Firefox 4.0+ in Safe Mode by holding the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* Or open the Help menu and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
''Once you get the pop-up, just select "'Start in Safe Mode"''
'''''If the issue is not present in 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.
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
''When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.''
You can check for problems caused by recent Flash updates and try these:
*disable a possible RealPlayer Browser Record Plugin extension for Firefox and update the RealPlayer if installed
*disable protected mode in Flash 11.3 and later
*disable hardware acceleration in the Flash plugin
*http://kb.mozillazine.org/Flash#Flash_Player_11.3_Protected_Mode_-_Windows
*http://helpx.adobe.com/flash-player/kb/common-problems-flash-player.html

I have windows 7 and have been using Firefox for the last several months and now I can' open it up for some reason.

I've been using firefox as my principle browser for quite some time. I normally just click on it once and it opens to the home page with google search in the middle of the page. I downloaded some e-mail attachment about a job and that's when it seemed to act up. I ran a scan on my computer and it says there is no problems but I still can't open up Firefox home page by clicking on the fox/world icon.

'''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.''

I have been using Firefox for years. When I downloaded the Firefox 20.0, I can type in my hotmail address, but my hotmail won't open.

I am able to type in the address bar, but when I hit enter, nothing happens. And I don't like using Internet Explorer. This happens when I try to acccess my hotmail account. I never had this problem with other versions of Firefox.

We are aware of issues using the address bar. A push to fix the issue will be made in 3-5 days. In the meantime since your issue is a little different that what we have you can try safe mode.
'''Try Firefox Safe Mode''' to see if the problem goes away. 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 Firefox 4.0+ in Safe Mode by holding the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* Or open the Help menu and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
''Once you get the pop-up, just select "'Start in Safe Mode"''
'''''If the issue is not present in 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.
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
''When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.''

I can not access ANY webpage...it is giving me a 403 Forbidden message saying I do not have permission to search on this server, yet, I have been using Firefox for months...this just started happening today?

This message just started happening...I use IE as well and have no problems.
I prefer Firefox and I hope you can resolve this.

Who is your Internet Service Provider...?
Do you have any computer which is able to go online wirelessly...?
Have you forwarded any ports on the router...?
Try to adjust the wireless settings on the router and check...
Open an Internet Explorer browser page on your wired computer(desktop).In the address bar type - 192.168.1.1 and press Enter...Leave Username blank & in Password use admin in lower case...
Under the Wireless tab,Change the SSIS(Network Name) to some unique name.Change the Channel Width to 20MHz only and Channel to 11,click on save settings.Under the Wireless Security subtab,Change the Security to WEP and type any ten digit number in key1 as the network security key,click on save settings..Under the Advanced Wireless Settings,Change the Beacon Interval to 75,Change the Fragmentation Threshold to 2304,Change the RTS Threshold to 2304 and Click on Save Settings...
Also,for the gaming system,check this link.

I have been using Firefox for over 10 years with minimal problems, but recently (within the past 2 months) something has changed and I cannot get any sound to play, even on previous web sites that did work. I'll just have to go back to IE!

Windows XP, Firefox 3.6.13 version, I am thinking it would be better to back up to a previous version of Firefox that did work! What was the latest version as of October 2010?

Thanks to some hints in several strings, I went back to the Control Panel in XP, clicked on Sounds and Devices, clicked on Audio, then changed the default device to the Realtek HD Audio output I have on my computer. Now I can hear You Tube video sound and other Internet audio fine, at least for now. I will come back if it stops again. Thanks to all who posted.

I have been using Firefox for years. I just downloaded your newest version. The new version shows to be downloaded successfully, but when I click Firefox Icon, I get a window that is called "Offline mode"

It states, "Firefox is curerntly in offline mode and cona't browse the web. It says to uncheck the "work offline" menu item.

See:
*File > [ ] Work Offline
Press F10 or press and hold the Alt key down to bring up the "Menu Bar" temporarily.

Have been using firefox for years but now having many problems two days ago could not acess any web pages without a firefox message saying page could not be ver

Went on the internet on Friday but a box appeared saying firefox could not verify web page and somebody could be trying to impersinate the web page this was my home page it gave me two options the first was get me out of here or that I understood the risks and to continue I clicked the latter and my home page came up this box continued to appear on each occasion I tried to acess any web pages but when I tried to acess Facebook the box only gave me the option of get me out of here it also did this when I tried to acess Mozilla Firefox to see whether there was a problem with the browser I tried to reinstall the browser but the problem persisted I finally got round the problem by reinstalling my computer to an earlier time before I did this I also have the option for Google chrome on my computer and this browser worked fine Facebook etc I prefere Firefox but although the warning box hasn't materialised since I reset my computer Firefox has become unstable where it has frozen on a web page and the only way I can get out is to start the task manager and end the programme even though the task manager is saying that the page is still working correctly but after I have ended the running of the programme it will not reload the firefox browser but again google chrome is fine I have to restart the computer to fix this problem any ideas thanks.

Can you attach a screenshot?
*http://en.wikipedia.org/wiki/Screenshot
*https://support.mozilla.org/kb/how-do-i-create-screenshot-my-problem
*Use a compressed image type like PNG or JPG to save the screenshot
*Make sure that you do not exceed the maximum size of 1 MB
Check the date and time and time zone in the clock on your computer: (double) click the clock icon on the Windows Taskbar.
Check out why the site is untrusted and click "Technical Details" to expand this section.
If the certificate is not trusted because no issuer chain was provided (sec_error_unknown_issuer) then see if you can install this intermediate certificate from another source.
You can retrieve the certificate and check details like who issued certificates and expiration dates of certificates.
*Click the link at the bottom of the error page: "I Understand the Risks"
Let Firefox retrieve the certificate: "Add Exception" -> "Get Certificate".
*Click the "View..." button and inspect the certificate and check who is the issuer of the certificate.
You can see more Details like intermediate certificates that are used in the Details pane.
If "I Understand the Risks" is missing then this page may be opened in an (i)frame and in that case try the right-click context menu and use "This Frame: Open Frame in New Tab".
*Note that some firewalls monitor (secure) connections and that programs like Sendori or FiddlerRoot can intercept connections and send their own certificate instead of the website's certificate.
*Note that it is not recommended to add a permanent exception in cases like this, so only use it to inspect the certificate.

Have been using firefox for months; now has quit working properly with the websites I use everyday. What happened?

It has quit working with "liverez" which is my web based reservation program. The place I login is https://reservations.liverez.com/login.asp?LogOff=True&Return=Res but once I login, the site does not work as it did before. The website that corresponds with this doesn't look right now either. I can't even use my msn email account with firefox now. I have had to go back to using internet explorer. I have not even tried other sites with foxfire at this time. The other sites I use for work. Things that aren't working are that I can't click on things I need to click on, drop downs aren't showing up, pictures are absent, etc. It is all working fine on internet explorer and used to work on firefox until last night.

Thanks to some hints in several strings, I went back to the Control Panel in XP, clicked on Sounds and Devices, clicked on Audio, then changed the default device to the Realtek HD Audio output I have on my computer. Now I can hear You Tube video sound and other Internet audio fine, at least for now. I will come back if it stops again. Thanks to all who posted.

I have always used firefox for just about everything! incl. I go to my xfinity email acct. suddenly, I cannot access my inbox!

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