Mozilla Firefox can’t load websites but other browsers can

Internet Security software blocking Firefox in Maine

If you were able to load websites until you updated Firefox or until your Internet security software was updated, reconfigured or a new one was added, your Internet security software (including firewalls, antivirus programs, anti-spyware programs, and more) is likely preventing Firefox from connecting to the Internet.

In general, you should make sure your Internet security software is up-to-date and remove Firefox from your program’s list of trusted or recognized programs, then add it back.

Firefox connection settings

If you connect to the Internet through a proxy server that is having connection problems, you will not be able to load websites. To check your connection settings in Firefox:

  1. Click the menu button and choose Options.
  2. In the General panel, go down to the Network Proxy
  3. In the Network Proxy section, click Settings….
  4. Change your proxy settings:
    • If you don’t connect to the Internet through a proxy (or don’t know whether you connect through a proxy), select No Proxy.
    • If you connect to the Internet through a proxy, compare Firefox’s settings to another browser’s (such as Internet Explorer — see Microsoft’s guide to proxy settings).
  5. Close the Connection Settings dialog.
  6. Close the about: preferences Any changes you’ve made will automatically be saved.

If you find that changes you make to your Firefox connection settings are not remembered when you restart Firefox.

Mozilla Firefox can’t load websites 

IPv6

Firefox supports IPv6 by default, which may cause connection problems on certain systems. To disable IPv6 in Firefox:

  1. In the address bar, type about: config and press Enter.
    • The about: config “This might void your warranty!”warning page may appear. Click I accept the risk! To continue to the about: config page.
  2. In the Searchfield, enter dns.disableIPv6.
  3. In the list of preferences, double-click dns. disable IPv6 to set its value to true.

DNS Prefetching

Firefox attempts to speed up loading new websites by using DNS Prefetching, which can cause page load errors with some system configurations. To disable DNS Prefetching:

  1. In the address bar, type about: config and press Enter.
    • The about: config “This might void your warranty!”warning page may appear. Click I accept the risk! To continue to the about: config page.
  2. Right-click in the list of preferences, select New, and then select Boolean.
  3. In the Enter the preference name field, enter dns.disablePrefetch and click OK.
  4. Select true when prompted to set the value and click OK.

Firefox cannot load certain websites

If you find that Firefox can load some websites but not others, first clear your Firefox cookies and cache:

  1. Click the Library button , click History and select Clear Recent History….
  2. In the Time Range to clear:drop-down, select everything.
  3. Click the arrow next to Detailsto display the list of items that can be cleared.
  4. Select both Cookiesand Cache.
  5. Click Clear Now.

Check for malware

If clearing your cookies and cache did not enable you to load the websites that did not work in Firefox, you should check your computer for malware. Certain types of malware are known to target Firefox and can prevent it from loading various websites:

  • If you have an antivirus or Internet security program, update its detections database and do a full scan of your system.
  • If you still have problems, follow the instructions in Troubleshoot Firefox issues caused by malware.

For more information about Mozilla Firefox Browser Call @ +1-855-969-1880.

Refresh Firefox – reset add-ons and settings

Refresh Firefox | Minnesota

  1. Click Refresh button directly, if you are viewing this page in Firefox.
    This won’t work if you are using a different browser or on a mobile device.
    • You can also find a Refresh Firefox button at the top of the Firefox about: support Troubleshooting Information page.
  2. To continue, click Refresh Firefox in the confirmation window that opens.
  3. Firefox will close to refresh itself. When finished, a window will list your imported information. Click Finish and Firefox will open.

What does the refresh feature do?

All of your Firefox settings and personal information are stored in a profile folder. The refresh feature works by creating a new profile folder for you while saving your important data.

Add-ons which are normally stored inside the Firefox profile folder, such as extensions and themes, will be removed. Add-ons stored in other locations, such as plugins, will not be removed but any modified preferences (such as plugins you have disabled) will be reset.

Firefox will save these items:

  • Bookmarks
  • Browsing and download history
  • Passwords
  • Open windows and tabs
  • Cookies
  • Web form auto-fill information
  • Personal dictionary

These items and settings will be removed:

  • Extensions and themes, website permissions, modified preferences, added search engines, DOM storage, security certificate and device settings, download actions, plugin settings, toolbar customizations, user styles and social features will be removed.

Call +1-855-969-1880 for firefox support.

How to disable all Mozilla Firefox extensions

Disable all Mozilla Firefox extensions | New York

To determine whether a faulty extension is causing your problem, you can disable all of your installed extensions:

  1. Click the menu button and choose  Add-ons. The Add-ons Manager tab will open.
  2. In the Add-ons Manager tab, select the Extensions
  3. Click the name of an extension in the list to select it.
  4. Click Disable to disable the selected extension.
  5. Repeat this for each of the other extensions in the list.
  6. Click Restart Firefox.

After you restart Firefox, all extensions will be disabled. Test for your problem.

If the problem no longer occurs with all extensions disabled, one of your extensions was causing it. To find the extension that was causing your problem, continue as follows:

Test for faulty extensions

To determine which of your disabled extensions was causing your problem, you can re-enable each extension one at a time.

  1. Click the menu button and choose  Add-ons. The Add-ons Manager tab will open.
  2. In the Add-ons Manager tab, select the Extensions
  3. Click the name of an extension in the list to select it.
  4. Click Enable to enable the selected extension.
  5. Click Restart Firefox.

After you restart Firefox, test for your problem. If the problem comes back, the extension you just enabled was causing it.

Need Support? Call  +1-855-969-1880.

Can not download files from Google Drive using Firefox

Can not download files from Google Drive using Firefox ? | Mississippi

If you use extensions (“3-bar” menu button# or Tools -> Add-ons -> Extensions) that can block content (e.g. Adblock Plus, NoScript, Flash Block, Ghostery) then make sure such extensions do not block content. There is security software that can interfere with loading content, so check that as well.

Start Firefox in Safe Mode to check if one of the extensions (“3-bar” menu button# or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.

  • switch to the DEFAULT theme: “3-bar” menu button# or Tools -> Add-ons -> Appearance
  • do NOT click the “Refresh Firefox” button on the Safe Mode start window
  • https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode
  • https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems

Clear the cache and remove the cookies from websites that cause problems via the “3-bar” Firefox menu button (Options/Preferences).

“Clear the cache”:

  • Firefox/Options/Preferences -> Advanced -> Network -> Cached Web Content: “Clear Now”

“Remove the cookies” from websites that cause problems.

  • Firefox/Options/Preferences -> Privacy -> “Use custom settings for history” -> Cookies: “Show Cookies”

Need Support? Call 1-855-969-1880.