Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Can't connect to all website it say Secure Connection Failed PR_CONNECT_RESET_ERROR

more options

Can't connect to all website in PC event mozilla website it say " Secure Connection Failed " and " PR_CONNECT_RESET_ERROR " but i still can use chrome my PC to connect website and firefox in my phone is still find so is not internet problem all fix in youtube is not work i already uninstall and reinstall firefox but it no use

Can't connect to all website in PC event mozilla website it say " Secure Connection Failed " and " PR_CONNECT_RESET_ERROR " but i still can use chrome my PC to connect website and firefox in my phone is still find so is not internet problem all fix in youtube is not work i already uninstall and reinstall firefox but it no use
Capturas de pantalla anexas

All Replies (5)

more options

A Reset usually is generated by the web server or by an intermediary in your connection to the server -- it's an instruction to Firefox to stop trying to connect.

What could be causing that?!

Is this a new problem today, or after a recent update, and Firefox was working normally earlier? Or is this a new installation of Firefox and it has never worked?


Although most people are not intentionally using a proxy server, Firefox may discover one set up in your system settings. Sometimes forcing Firefox to ignore those settings helps with weird connection issues. Here's how:

Open the Settings page using either:

  • "3-bar" menu button > Settings
  • (menu bar) Tools > Settings
  • type or paste about:preferences into the address bar and press Enter/Return to load it

In the very tiny search box at the top of the page, type proxy and Firefox should filter to the "Network Settings" section of the page.

Click the Settings button, change the top setting to "No Proxy" and then click the OK button at the bottom of the dialog to save your change.

Any difference?

more options

still not work

more options

Is this a new problem today, or after a recent update, and Firefox was working normally earlier? Or is this a new installation of Firefox and it has never worked?

more options

Is a new problem i use firefox for 5-6year and it find it have problem yesterday Don't sure about have any update or not I try Uninstall and re install but no use

more options

Could you test in Firefox's Troubleshoot Mode? In that mode, Firefox temporarily deactivates extensions, hardware acceleration, any userChrome.css/userContent.css files, and some other advanced features to help you assess whether these are causing the problem.

If Firefox is running:

You can restart Firefox in Troubleshoot Mode using either:

  • "3-bar" menu button > Help > Troubleshoot Mode... (before Fx88: Restart with Add-ons Disabled)
  • (menu bar) Help menu > Troubleshoot Mode... (before Fx88: Restart with Add-ons Disabled)

and OK the restart. A small dialog should appear. Click the Open button (before Fx88: "Start in Safe Mode" button).

If Firefox is not running:

Hold down the Shift key when starting Firefox. (On Mac, hold down the option/alt key instead of the Shift key.) A small dialog should appear. Click the Open button (before Fx88: "Start in Safe Mode" button).

Note: Don't use the Refresh without first reviewing this article to understand what will be deleted: Refresh Firefox - reset add-ons and settings.

Any improvement?