How to Fix Firefox Error sec_error_unknown_issuer?

How to Fix Firefox Error sec_error_unknown_issuer?:

Mozilla Fix Firefox error Premium online tech Support Company focuses on Firefox Error sec_error_unknown_issuer to avoid trouble due to our Mozilla Firefox. Sometimes users are using Mozilla Firefox to browse a website; you go to the website using an SSL certificate and receive an error that your connection is not secure. If you click to learn more, you will see the following message below.

  1. Repair registry entries associated with error sec_error_unknown_issuer

  • Click on Start button
  • Type “command” in the search box … do not hit it yet!
  • With the CTRL-Shift on your keyboard, press ENTER
  • You will be prompted with the permission dialog box.
  • Click Yes
  • A black box will open with the blinking cursor.
  • Type “Regedit” and press enter
  • In Registry Editor, select the error sec_error_unknown_issuer-related key (such as Firefox) that you want to back up
  • From the File menu, select Export
  • Follow Save to List, select the folder where you want to save the Firefox backup key.
  • In the file name box, type a name for your backup file, such as “Firefox backup”.
  • Export the range, make sure that “selected branch” is selected.
  • Click Save
  • The file is then saved with a .reg file extension.
  • You now have a backup of the registry entry related to Firefox
  1. Operate a complete malware scan of your PC:

  2. Clear your system junk (temporary files and folders) with Disk Cleanup (

    Cleanmgr)

Fix Firefox error sec_error_unknown_issuer (solution)

How to run Disk Cleanup (Windows XP, Vista, 7, 8, and 10):

  • Click on Start button
  • Type “command” in the search box … do not hit it yet!
  • With the CTRL-Shift on your keyboard, press ENTER
  • You will be prompted with the permission dialog box.
  • Click Yes
  • A black box will open with the blinking cursor.
  • Type “cleanmgr” and press Enter
  • Disk Cleanup You can start calculating how much captured disk space.
  • Disk Cleanup dialog box will appear with a series of checkboxes you can select. In most cases, the “temporary files” category will occupy the most disk space.
  • Check the boxes of categories that you want to clear and click OK.
  1. Update your PC device driver:

  2. Use Windows System Restore for “Undo” System Recently Recently

To use System Restore (Windows XP, Vista, 7, 8, and 10):

  • Click on Start button
  • In the search box, type “System Restore” and press ENTER.
  • In the results, click System Restore.
  • Enter an administrator password (if prompted)
  • Follow the wizard steps to select the restore point
  • Restore your computer
  1. Uninstall and restore the Firefox program, connected to error sec_error_unknown_issuer

Uninstall and restore instructions for Windows 8, 10:

  • To add the start menu image, place the cursor at the bottom of the screen
  • Right-click to fetch the initial context menu
  • Click Programs and Features
  • Find out that the certificate is not trusted because the issuer certificate is an Anonymous-associated program under the Name column.
  • Click on the Firefox-related entry
  • Click Uninstall / Change on the top menu ribbon.
  • Follow the on-screen instructions to uninstall your error sec_error_unknown_issuer-related program
  •  Uninstall your error sec_error_unknown_issuer-related program (such as Firefox), restore the program according to the Mozilla Foundation instructions.
  1. Run Windows System File Checker (“SFC / scannow”)

System file tester is an easy tool that is included with Windows that allows you to scan and restore windows system files for corruption (including error-related sec_error_unknown_issuer)

  • To run the system file checker (Windows XP, Vista, 7, 8, and 10):
  • Click on Start button
  • Type “command” in the search box … do not hit it yet!
  • With the CTRL-Shift on your keyboard, press ENTER
  • You will be prompted with the permission dialog box.
  • Click Yes
  • A black box will open with the blinking cursor.
  • Type “Sfc / scannow” and press enter
  • System file tester error will begin scanning for sec_error_unknown_issuer and other system file problems (Endurance – System scan may take for a while).
  • Follow the on-screen commands
  1. Install All Available Windows Updates:

Microsoft is constantly updating and improving Windows system files that may be related to error sec_error_unknown_issuer

To check for Windows updates (Windows XP, Vista, 7, 8 and 10):

  • Click on Start button
  • Type “update” in the search box and press enter.
  • The Windows Update dialog box will appear.
  • If updates are available, click the update button.
  1. Perform a Clean Installation of Windows:

Reasons of Error sec_error_unknown_issuer:

  • Corrupt download or incomplete installation of Firefox.
  • Corruption in Windows registry from a recent Firefox-related software change
  • Virus or malware infection that has corrupted Windows system files
  •  Program have maliciously or mistakenly deleted Firefox-related files.

For more information or Support in Connecticut Call +1-800-359-4380.

How to fix Mozilla Firefox updated every time error?

Firefox says it’s just updated every time it starts – how to fix.

Mozilla Firefox is a web browser and this browser use widely. When users update and download the latest version of Firefox then users face Sometimes users face problem in Mozilla Firefox updated every time error every time it starts and users update Firefox much time. Ther are two way to solve this error.So if you face this problem then

Follow these steps:

There are two possible causes for this. You may have that tab saved accidentally as your homepage or Firefox may be having trouble saving to your settings file which results in it not realizing you have already seen the “You’ve been updated” message.

  1. “Firefox Updated” tab saved to your home page

  • Click the menu button and choose Options.
  • Select the General panel.
  • In the Startup area, highlight the text on the Home Page: box.
  • If it includes something similar to http://www.mozilla.com/en-US/firefox/4.0/whatsnew/ then you have accidentally added the “Firefox Updated” page to the sites that Firefox loads on startup.
  • You can fix this by clicking Restore to Default. To change your homepage to something

How to fix Mozilla Firefox updated every time error

 

  1. Firefox is unable to save your preferences:

Firefox changes a setting in its preferences file to determine whether you’ve seen the “Firefox Updated” tab. If you are having problems with that file then Firefox will be unable to save this information and will show you the “Firefox Updated” tab each time you start it. You may also notice that options you select in your Options tab are not kept after you close Firefox.

For more information or support in Hawaii Call  + 1-800-359-4380.

 

  How to Block and Unblock Internet Sites with Firefox?

How to Block and Unblock Internet Sites with Firefox?

Users reported certain issues with Firefox on Windows 10 in file explorer. When users update and download new updated version of Firefox then users face this problem that   How to Block and Unblock Internet Sites with Firefox? This can be a big problem for Firefox. So if you use Firefox as your default browser and you face this problem then.

Follow these steps:

  1. Open Firefox. Its app icon resembles a blue globe with an orange fox on it.
  2. Go to the Block Site installation page. Block Site is a clean site-blocking add-on for your Firefox browser.

  How to Block and Unblock Internet Sites with Firefox:

3. Click Add to Firefox. It’s a green button near the top of the page.

  How to Block and Unblock Internet Sites with Firefox:

4. Click Add when prompted. You’ll see this on the upper-left side of the page.

  How to Block and Unblock Internet Sites with Firefox:

5. Click OK. Doing so will install Block Site in your Firefox browser.

  How to Block and Unblock Internet Sites with Firefox:

6. Click ☰. It’s in the top-right corner of the Firefox window. A drop-down menu will appear.

7.Click Add-ons. You’ll find this option near the middle of the drop-down menu. Your Firefox add-ons’ page will open.

8.Find the Block Site icon. It resembles a chain link and a red “restricted” sign. You may have to scroll down to find this.

9.Click Options. It’s to the right of the Block Site icon.

  • On Mac, click Preferences instead.

  How to Block and Unblock Internet Sites with Firefox:

  1. Scroll down and click the “Add domains manually to block list” field. This text field is near the bottom of the page.

  How to Block and Unblock Internet Sites with Firefox:

11.Enter a website’s address. Type in a website’s address, making sure to include the “www.” and “.com” (or “.org”, or whatever the site’s tag is) parts of the website’s address.

  • For example: to block Facebook, you would type in www.facebook.com

  How to Block and Unblock Internet Sites with Firefox:

  1. Click +. It’s to the right of the text field. Doing so immediately adds the website and all of its associated pages to the block list.
  • Repeat this process for other sites that you want to block.
  1. Unblock sites on Block Site’s list. If you decide that you want to unblock a previously blocked site, do the following:

  • Click ☰
  • Click Add-ons
  • Find Block Site.
  • Click Options or Preferences
  • Scroll down to your list of blocked sites and find the site that you want to unblock.
  • Click X to the right of the site.
  1. Try to access a recently unblocked site. Click the address bar at the top of the Firefox window to select its contents, then type in the address of the website that you just unblocked and press ↵ You should now be able to open the site.
  • If you can’t access the site, you may need to close and re-open Firefox.

  How to Block and Unblock Internet Sites with Firefox:

For Further information or Support in Illinois Call +1-800-359-4380.

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 recognised programs, then add it back.

Mozilla Firefox can't load websites

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: configand 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: configand 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-clickin the list of preferences, select New, and then select Boolean.
  3. In the Enter the preference namefield, 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 info about Mozilla Firefox Browser Call @ +1-800-359-4380 (toll-free).