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Several websites came back as not secure including Twitter after I used the "Refreh Firefox" button, and some websites images won't show up on

The messages "Your connection is not secure The owner of twitter.com has configured their website improperly. To protect your information from being stolen, Firefox has n… (閱讀更多)

The messages "Your connection is not secure

The owner of twitter.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website.

This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox may only connect to it securely. As a result, it is not possible to add an exception for this certificate.

Learn more…

Report errors like this to help Mozilla identify and block malicious sites" and

"Your connection is not secure

The owner of www.adultempire.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website.

Learn more…

Report errors like this to help Mozilla identify and block malicious sites"

comes up for several websites including Twitter, Tumblr, DeviantArt.com google.com & others

And other websites, images don't show up

None of this happened until after I used the "Refresh Firefox - reset add-ons and settings" feature

H13dawg 於 1 年前 詢問

FredMcD 最近回覆 於 1 年前

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Can't open facebook/instagram or any facebook related source

Latest x64 firefox version. This started to happen like 2-3 weeks ago already. Firefox can't connect to any of facebook servers like facebook.com, instagram.com, oculus.c… (閱讀更多)

Latest x64 firefox version. This started to happen like 2-3 weeks ago already. Firefox can't connect to any of facebook servers like facebook.com, instagram.com, oculus.com etc. Msg: Connection timed out

Tried: - Starting Firefox without addons in safe mode - Proxy disabled (fully) - Settings reset - Full Firefox uninstall with registry/files wipe

Internet Explorer, Chrome opens fine. Firefox on laptop in same network opens fine. Firewall disabled. Hosts clean. If i'm enabling VPN addon like Browsec, facebook opens up, as well as others.

dezmen 於 1 年前 詢問

FredMcD 最近回覆 於 1 年前

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Almost every website I visit, including Bing search, gives me an "Insecure Connection" error code!!!

I have no idea what's going on. I have the latest Firefox Developer Edition English x64 and every website I try to connect to, Google, Bing, etc. give me this insecure co… (閱讀更多)

I have no idea what's going on. I have the latest Firefox Developer Edition English x64 and every website I try to connect to, Google, Bing, etc. give me this insecure connection error. I also have Chrome, Vivaldi, Edge & Opera browser and none of them give me issues like this.

jerdoggmckoy 於 1 年前 詢問

James 最近回覆 於 1 年前