Firefox is unable to connect to websites when im using LAN connection

i cant browse any website with firefox when im using my hostel LAN connection.. my wifi works but only LAN is unable to connect.. the LAN works fine since im connected to the internet and im able to use other web browser such as LAN was firefox

Similar Messages

When I try to access a web site Firefox displays "unable to connect"

I access Firefox and select a web site
Firefox displays unable to connect, the "try again" button does not help
this just started after I did a system restore

Disabling Add-ons worked. Firefox can access the web again. Thank you for your support. AM

An automated update has rendered my laptop Firefox browser unable to connect to any websites, how do I fix this issue?

When the update for my browser took place, on 5/5/14 @ approximately 12:15 am, it rendered the browser unable to connect to any websites. It does work in safe mode, but not in regular mode. I am on an hp pavilion dv7, running windows 7. I need to resolve this issue ASAP. Or I will have to switch browsers, which I don't want to do, as I have used Firefox for many years. Can I get some assistance to rectify the problem?

Can you start by giving us the troubleshooting information from the Firefox installation that's having problems. This is an essential step in troubleshooting. 
*Click the Firefox button at the top left, then click the ''Help'' menu and select ''Troubleshooting Information'' from the sub-menu. If you don't have a Firefox button, click the Help menu at the top and select ''Troubleshooting Information'' from the menu.
Now, a new tab containing your troubleshooting information should open.
*At the top of the page, you should see a button that says "Copy text to clipboard". Click it.
*Now, go back to your forum post and click inside the reply box. Press Ctrl+V to paste all the information you copied into the forum post.

Internet Explorer works; Firefox doesn't; every website on Firefox says 'unable to connect.'

I opened Firefox. When I try to get into any website, the error message 'unable to connect" appears. I switched over to Internet Explorer and it work fine - I can connect to the Internet with no problems. So, what's going on? How can I fix it?

It is possible that your security software (firewall, anti-virus) blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.
Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.
See:
*https://support.mozilla.org/kb/Server+not+found
*https://support.mozilla.org/kb/Firewalls
*https://support.mozilla.org/kb/fix-problems-connecting-websites-after-updating

Firefox says "Unable to Connect" to two specific websites

I cannot access two site through Firefox, one is facebook.com. The message says, "Problem Loading Page. Unable to connect. Firefox can't establish a connection to the server at www.facebook.com...." Another website is a Proboards site. I can get to proboards.com, but the specific board I want to access. I am able to get to all other web pages except these two. I am also able to access these websites from other computers using the same internet connection. I have disable all add ons and uninstalled all antivirus software. Firefox is checked as an exception to the Windows Firewall (I even tried turnign off the Firewall to see if that would work, but it did not)
== URL of affected sites ==
http://www.facebook.com/

Server Facebook blocked your IP so you can use DSN Google to access internet easyer and faster.With this DSN you access any website including Facebook.
Setting DSN Google:Control Panel->Network Connections->Local Area Network->Click right-mouse chose Properties->Internet Protocol (TCP/IP) and click Properties->Use the following DNS server addresses-> fill Preferred DNS server: 8.8.8.8 and Alternative DNS server: 8.8.4.4 and final Click Ok->Ok.

When I try to go on Firefox an " Unable to Connect" comes up. If I go on Google Chrome I have no problem. Help

I was using Firefox until November. My computer wet in for repair and I have had this issue since. I would like to use firefox again. For some reason every time I try to use it an "Unable to Connect" message comes up.
I have been using Google Chrome to get through school but would perfer Firefox. Please help.

See [[Firefox cannot load websites but other programs can]], a common cause is a firewall blocking Firefox.

Firefox is "unable to connect" to any site, while other broswers can

I've tried clearing my cookies and history, disabling addons/extensions and the firewall, changing/disabling proxy settings, and read several of the articles, but nothing seems to work. I was out of town for 2 days and everything was working fine when I left. Got back today and just kept getting "unable to connect" message for any website I tried to open. I tried to download chrome and opera, but the download had an error and just didn't work (chrome) and just stayed at 0% with nothing happening (opera). i'm able to get emails and get on websites via internet explorer.

Hello vtand06, did you also try a ''Clean reinstall'' ? This means you remove Firefox program files and then reinstall Firefox. Please follow these steps:
'''Note:''' You might want to print these steps or view them in another browser.
#Download the latest Desktop version of Firefox from [https://www.mozilla.org mozilla.org] (or choose the download for your operating system and language from [https://www.mozilla.org/firefox/all/ this page]) and save the setup file to your computer.
#After the download finishes, close all Firefox windows (or open the Firefox menu [[Image:New Fx Menu]] and click the close button [[Image:Close 29]]).
#Delete the Firefox installation folder, which is located in one of these locations, by default:
#*'''Windows:'''
#**C:\Program Files\Mozilla Firefox
#**C:\Program Files (x86)\Mozilla Firefox
#*'''Mac:''' Delete Firefox from the Applications folder.
#*'''Linux:''' If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see [[Installing Firefox on Linux]]. If you downloaded and installed the binary package from the [http://www.mozilla.org/firefox#desktop Firefox download page], simply remove the folder ''firefox'' in your home directory.
#Now, go ahead and reinstall Firefox:
##Double-click the downloaded installation file and go through the steps of the installation wizard.
##Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.
More information about reinstalling Firefox can be found [[Troubleshoot and diagnose Firefox problems#w_5-reinstall-firefox|here]].
WARNING: Do not use a third party uninstaller as part of this process. Doing so could permanently delete your [[Profiles|Firefox profile]] data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and saved passwords. These cannot be easily recovered unless they have been backed up to an external device! See [[Back up and restore information in Firefox profiles]]. 
Please report back to say if this helped you!
Thank you.

On my other compuyer (Windows Vista) firefox is unable to connect. This is all of a sudden but all day.

When clicking on my firefox icon on my wifes Windows Vista computer, I get an "Unable to connect" error. More specifically
"Firefox can't establish a connection to the server at en-us.start3.mozilla.com". The network is working because internet explorer works fine. This just started this morning and continues all day.

Thank you for your help and it was a big help. I removed Norton software firewall, and firefox began to work. I thank you for your help and suggestion.
Dennis

Can you assist? Firefox is unable to connect to the internet due to computer protected by a firewall or proxy.

Unable to connect
Firefox can't establish a connection to the server at www.google.com.
The site could be temporarily unavailable or too busy. Try again in a few moments.
If you are unable to load any pages, check your computer's network connection.
If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web.

Open your firewall program. First check the settings. Make sure that the
program is set to tell you if a new program wants access to the web. Then
go to the list of programs the firewall has. Make sure that all the programs
you want to access the web are set to '''ALLOW'''. If it is set to '''AUTO''', the
firewall may not allow access.

Firefox says "Unable to connect" but Interent Explorer works fine

Randomly one day, opened up firefox and it was unable to connect. I have gone to the support sites I have followed everything, yet nothing works. Internet Explorer works just fine so its not my connection. I have also uninstalled and re-installed the entire program it still doesn't work.
== This happened ==
Every time Firefox opened
== User Agent ==
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; MDDC; .NET4.0C)

Did the problem appear after updating your version of Firefox? It could be your Firewall does not recognize the new version. See:
http://support.mozilla.com/en-US/kb/Cannot+connect+after+upgrading+Firefox
http://support.mozilla.com/en-US/kb/Firewalls
Also see:
http://support.mozilla.com/en-US/kb/Error+loading+web+sites
http://kb.mozillazine.org/Error_loading_websites

Firefox is unable to open eny website, how to solve it?

All of a sudden Firefox started to act very strangely on my computer. If I reboot my computer Firefox will initially work normally for about 5 minutes, after that it just won´t work to load and open any webpage, Firefox is acting like the computer is offline, it just keeps loading but cant open any webpage. I know my internet connection is alright since other browsers like internet Explorer is working fine. Another weird thing is that I am also not able to close down the Firefox processes in the task manager if I close down the browser, this makes it problematic to reboot Firefox, because an error message tells me that Firefox is already running, yet i can not close down the processes, the only way to really close it seems to be to reboot the computer. I have also tried to reinstall Firefox but the problem remains the same. Firefox is my prefered browser, so it would be really great to get it functioning normaly again.

Thanks for your answer. Unfortunately it did not solve the problem. I doubt that it my security software that is disabling Firefox to function. I have checked and I could not find anything blocking Firefox, besides the problem did not occur in connection with any update. The mysterius thing is that Firefox works just fine for 5 minutes when I start up the computer after a reboot, then it simply stops working.

User reviews don't show on websites when i use firefox

User reviews don't load on websites since the latest Firefox update. They do show when I use IE.

Hello,
Are you facing this problem on particular sites??
Many site issues can be caused by corrupt cookies or cache. In order to try to fix these problems, the first step is to clear both cookies and the cache.
'''Note:''' This will temporarily log you out of all sites you're logged in to. To clear cache and cookies do the following:
* Go to Firefox > History > Clear recent history or (if no Firefox button is shown) go to Tools > Clear recent history.
* Under "Time range to clear", select "Everything".
* Now, click the arrow next to Details to toggle the Details list active.
* From the details list, check Cache and Cookies and uncheck everything else.
* Now click the Clear now button.
Further information can be found in the [[Clear your cache, history and other personal information in Firefox]] article.

There are ads that come up on the right side and bottom of websites when I use Firefox on my computer- right now it seems to be one Windows computer

When I use Firefox on a Windows based computer a side "ad" bar comes up on the right side(if looking at the computer) and one comes up on the bottom that offers other searches similar to the website I am on.

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.
Do a malware check with some malware scanning programs on the Windows computer. 
Please scan with all programs because each program detects different malware.
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
*SuperAntispyware: http://www.superantispyware.com/
*Microsoft Safety Scanner: http://www.microsoft.com/security/scanner/en-us/default.aspx
*Windows Defender: Home Page: http://www.microsoft.com/windows/products/winfamily/defender/default.mspx
*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.
*http://support.kaspersky.com/viruses/solutions?qid=208280684
See also:
*"Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

FIREFOX IS FREEZING MY BACKGROUND GIF IMAGES WHEN THEY USED TO RUN SMOOTHLY BEFORE.

WE CREATE WEBSITES USING THE WEEBLY CREATOR, AND ALL OF OUR BACKGROUND IMAGING WORKS FLAWLESSLY IN CHROME.
BUT WE DESIGN ALL OF OUR WEBSITES USING THE FIREFOX BROWSER, AND CERTAIN BACKGROUNDS ARE FREEZING WHEN THEY NEVER USED TO DO SO BEFORE.
1. WE DELETED FOXFIRE AND UPDATED IT AGAIN
2. WE DISABLED ALL OF OUR PLUGINS AND THAT DIDN'T WORK.
3 WE WENT TO THE CONFIF: SETTINGS AND MADE SURE BOTH VIDEO AND GRAPH SETTINGS WHERE SET TO TRUE AND WE ARE STILL HAVING A HUGE PROBLEM WITH FREEZING BAD.
4. WE DISABLED HARDWARE ACCELERATOR WITH STILL NO LUCK
"application": {
"name": "Firefox",
"version": "37.0.1",
"buildID": "20150402191859",
"userAgent": "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:37.0) Gecko/20100101 Firefox/37.0",
"updateChannel": "release",
"supportURL": "https://support.mozilla.org/1/firefox/37.0.1/WINNT/en-US/",
"numTotalWindows": 2,
"numRemoteWindows": 0
"crashes": {
"submitted": [],
"pending": 1
"modifiedPreferences": {
"browser.cache.disk.smart_size.first_run": false,
"browser.cache.disk.capacity": 358400,
"browser.cache.frecency_experiment": 2,
"browser.places.smartBookmarksVersion": 7,
"browser.sessionstore.upgradeBackup.latestBuildID": "20150402191859",
"browser.startup.homepage_override.mstone": "37.0.1",
"browser.startup.homepage_override.buildID": "20150402191859",
"dom.mozApps.used": true,
"extensions.lastAppVersion": "37.0.1",
"gfx.direct3d.last_used_feature_level_idx": 0,
"media.gmp-gmpopenh264.lastUpdate": 1428406839,
"media.gmp-gmpopenh264.version": "1.3",
"media.gmp-gmpopenh264.enabled": true,
"media.gmp-manager.lastCheck": 1428406839,
"network.cookie.prefsMigrated": true,
"places.history.expiration.transient_current_max_pages": 104472,
"plugin.state.np_wtapp": 1,
"plugin.state.npadobeaamdetect": 2,
"plugin.importedState": true,
"plugin.state.np32dsw": 2,
"plugin.disable_full_page_plugin_for_types": "application/pdf",
"plugin.state.nppdf": 2,
"plugin.state.npwlpg": 2,
"plugin.state.npintelwebapiipt": 2,
"plugin.state.npspwrap": 2,
"plugin.state.npappdetector": 2,
"plugin.state.npintelwebapiupdater": 2,
"plugin.state.npgoogleupdate": 2,
"plugin.state.nphpdetect": 2,
"plugins.load_appdir_plugins": true,
"privacy.sanitize.migrateFx3Prefs": true
"lockedPreferences": {},
"graphics": {
"numTotalWindows": 2,
"numAcceleratedWindows": 2,
"windowLayerManagerType": "Direct3D 11",
"windowLayerManagerRemote": true,
"adapterDescription": "Intel(R) HD Graphics 4000",
"adapterVendorID": "0x8086",
"adapterDeviceID": "0x0166",
"adapterSubsysID": "1854103c",
"adapterRAM": "Unknown",
"adapterDrivers": "igdumdim64 igd10iumd64 igd10iumd64 igdumdim32 igd10iumd32 igd10iumd32",
"driverVersion": "10.18.10.3304",
"driverDate": "9-9-2013",
"adapterDescription2": "",
"adapterVendorID2": "",
"adapterDeviceID2": "",
"adapterSubsysID2": "",
"adapterRAM2": "",
"adapterDrivers2": "",
"driverVersion2": "",
"driverDate2": "",
"isGPU2Active": false,
"direct2DEnabled": true,
"directWriteEnabled": true,
"directWriteVersion": "6.3.9600.17415",
"webglRenderer": "Google Inc. -- ANGLE (Intel(R) HD Graphics 4000 Direct3D11 vs_5_0 ps_5_0)",
"info": {
"AzureCanvasBackend": "direct2d 1.1",
"AzureSkiaAccelerated": 0,
"AzureFallbackCanvasBackend": "cairo",
"AzureContentBackend": "direct2d 1.1"
"javaScript": {
"incrementalGCEnabled": true
"accessibility": {
"isActive": false,
"forceDisabled": 0
"libraryVersions": {
"NSPR": {
"minVersion": "4.10.8",
"version": "4.10.8"
"NSS": {
"minVersion": "3.17.4 Basic ECC",
"version": "3.17.4 Basic ECC"
"NSSUTIL": {
"minVersion": "3.17.4",
"version": "3.17.4"
"NSSSSL": {
"minVersion": "3.17.4 Basic ECC",
"version": "3.17.4 Basic ECC"
"NSSSMIME": {
"minVersion": "3.17.4 Basic ECC",
"version": "3.17.4 Basic ECC"
"userJS": {
"exists": false
"extensions": [
"name": "Adobe Acrobat - Create PDF",
"version": "2.0",
"isActive": false,
"id": "[email protected]"
"name": "Norton Toolbar",
"version": "2015.2.1.3",
"isActive": false,
"id": "{2D3F3651-74B9-4795-BDEC-6DA2F431CB62}"
"experiments": []
WE WOULD LIKE OT CONTINUE TO USE FIREFOX FOR OUR WEBSITE CREATION BUT IF THESE FREEZES DON'T STOP WE WILL BE FORCED TO CHANGE OVER TO CHROME FOR ALL OUR CLIENTS. HERE IS THE WEBSITE AND THE BACKGROUND IMAGES WHICH ARE FREEZING.
http://www.allianceoftheholytrinity.com/
1. http://www.allianceoftheholytrinity.com/10014-audio--video-messages-of-faith-10014.html
2. http://www.allianceoftheholytrinity.com/10014-virtual-3d-tours-10014.html
3. http://www.allianceoftheholytrinity.com/10014-inside-the-vatican-10014.html
PLEASE HELP.....

''mrbunnylamakins [[#answer-714804|said]]''
<blockquote>
Try this...... your gif animation may be off
Toggle animated GIFs :: Add-ons for Firefox
[https://addons.mozilla.org/en-us/firefox/addon/toggle-animated-gifs/]
or
1) in a new tab type in the URL '''about:config'''
2) click the button saying '''I'll Be Careful'''
3) type into the search bar at top '''image.animation_mode'''
4) It should read '''Normal''' under mode
The Firefox preference image.animation_mode determines how the browser handles animated gifs. It has three values that it accepts:
* none - will prevent all animation and display a static image instead.
* once - will run through the animation once and then stop.
* normal (default) - will allow it to play repeatedly.
The new value takes effect right away, which you can test on any page that is displaying animated gifs. If a page is already open, you need to reload it before the change becomes available.
</blockquote>
''mrbunnylamakins [[#answer-714804|said]]''
<blockquote>
Try this...... your gif animation may be off
Toggle animated GIFs :: Add-ons for Firefox
[https://addons.mozilla.org/en-us/firefox/addon/toggle-animated-gifs/]
or
1) in a new tab type in the URL '''about:config'''
2) click the button saying '''I'll Be Careful'''
3) type into the search bar at top '''image.animation_mode'''
4) It should read '''Normal''' under mode
The Firefox preference image.animation_mode determines how the browser handles animated gifs. It has three values that it accepts:
* none - will prevent all animation and display a static image instead.
* once - will run through the animation once and then stop.
* normal (default) - will allow it to play repeatedly.
The new value takes effect right away, which you can test on any page that is displaying animated gifs. If a page is already open, you need to reload it before the change becomes available.
</blockquote>

Firefox mage quality and resolution was superb when I used XP and Vista. Now that I have Windows 7, however (with the Firefox 3.6.3 version), the image quality and resolution is poor. Please help me!

I am using the Firefox 3.6.3 version with my new Windows 7 operating system. When I used all the previous Firefox versions in my XP and Vista operating systems, image quality and resolution was excellent! However, now that I have upgraded to Windows 7 and Firefox 3.6.3, the image quality and resolution is poor (unacceptable for downloading purposes).
== This happened ==
Every time Firefox opened
== I first activated my new computer and installed the Firefox 3.6.3.

All my images are pixelated in firefox 3.6.3
http://www.dcgdcreative.com
Not only on my site but on most sites I view.
The issue is not solved by resetting the zoom text view (ctrl+0)
The issue is not resolved by starting in safemode with add-ons disabled
The problem seems to only affect .jpeg files and only on Windows 7 on my desktop; as I have viewed several sites using windows XP with my laptop, no issues.
I had the same issue with IE8 and was able to fix the problem with by setting up the compatibility view for all sites. Issue fixed no problems at all. But nothing similar for firefox?
Whats the deal?

Firefox is unable to connect to websites when im using LAN connection

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