Firefox Community Forum

I am trying to access certain HTTPS website and some of them show PR_CONNECT_RESET_ERROR in Firefox. This error is not present in Edge or Chrome. Any ideas on what could be the problem?

An error occurred during a connection to delta-executorr.com. PR_CONNECT_RESET_ERROR

Error code: PR_CONNECT_RESET_ERROR The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please contact the website owners to inform them of this problem.

Here's what I've tried (none of these works):

   DNS over HTTPS turned off
   Uninstall all add-ons
   Reinstall Firefox
   Create new profile and set it as default
   Delete/rename certs.db in the Firefox profiles folder. 

I'm tired fixing errors which become more complex and solutions are written for people who have the time an knowledge to waste fixing these constant issues in FIREFOX, Time to change browser.

I don't know if this is relevant but one of the website that does not work is https://delta-executorr.com/

Mozilla recently did some updates to Firefox.

I have just started my computer and went to Firefox and then to bookmarks, but they all have gone.

Anybody have a similar situation and how did you resolve the problem so as to restore all of your bookmarks.

Thanks in advance.

Bob R

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For the past few days I have been noticing that the websites run by google such as youtube, gmail, maps, are not running properly in firefox desktop app. I have to refresh it again and again or close the entire firefox and restart it to start working properly. Any idea why this is happening ?

My firefox is already updated to it's latest version.

I keep getting emails warning me that my Mozilla account and data will be permanently deleted on Monday, Nov 24, 2025 unless I sign in to my account. I have responded to these warnings by signing into my account numerous times. I'm logged into my account now, as a write this on the morning of Sunday, October 23. The log of my recent Mozilla account activity confirms that I logged into my account on July 5, October 2, November 20, and November 21 of this year (2025). Besides logging into my account, I recently added information to my profile, including a secondary email, a picture, and a display name. Yet I still received a "last chance" email from Mozilla on Saturday, Nov 22, 2025, at 10:45 PM warning me that my account and data will be permanently deleted on Monday, November 24 (please see attached image). I'm concerned that my recent Mozilla account logins are not being registered, and that consequently my account and data will be permanently deleted tomorrow despite my efforts to prevent this by logging in several times and even adding information to my profile. Please stop this from happening or instruct me on how I can stop this from happening.

Thank you, from Kirk Brown.

Has Microsoft blocked Mozilla from access my hotmail.com Outlook account now that MS has bought out hotmail.com? I have Windows 11 on my PC and I can't reach my hotmail.com acct via Firefox browser, please advise. Thanks.

I can not go to Spectrum, VRBO, my credit union and other web sites and fill I out any forms since the last update. What can I do? It's bad enough that I had to start using Chrome to get anything done

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I just updated to the latest Firefox. All my history, bookmarks, extensions are now gone. I do not seem to be able to get them back. My old version of Firefox is not available. When I ask to update from a prior browser, the drop down selection does not give me my prior version of Firefox. Help!

Hi

Recently when i try to sign into my outlook accounts using the option password, says "you've tried to sign in too many times with an incorrect password?" i have to ask to send a link to another email address to sign in. I have no problem signing in on other platforms, just Firefox. I have tried safe mode clear cache and still it doesn't let me sign in using my password? Assistance to resolve this would be appreciated. Thank you

Chris