This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

How to disable checking for sites security certificates

Gentleman_10
Gentleman_10
more options

I work in a company which manipulates its server in a way to make all unwanted sites look like not having a valid certificate so when I try to open them like gmail site I get a message that this site doesnt have a valid certificate and firefox - or any other browser- dont open the site. The question is: how to disable this feature in firefox to stop looking for sites certificates or doesnt care about them?

I work in a company which manipulates its server in a way to make all unwanted sites look like not having a valid certificate so when I try to open them like gmail site I get a message that this site doesnt have a valid certificate and firefox - or any other browser- dont open the site. The question is: how to disable this feature in firefox to stop looking for sites certificates or doesnt care about them?

All Replies (6)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Did you try to contact the IT department to see if is is possible to install the root certificate of that proxy?

Does this happen in other browsers as well?

If not then inspect the certificate chain and see if you can export the root certificate and import this certificate in Firefox.

Gentleman_10
Gentleman_10 Question owner
more options

The IT people told me that "this is their way of making a firewall" This applies to all blocked sites not just one. The network doesnt use any proxy. This happens in other browsers as well. I am not sure how to export the root certificate. can you provide more explanation?

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Exporting a root certificate in another browser would only be helpful if it did work in that browser. If it happens in other browsers as well then it would be of any help.

I'm not seeing the button to add an exception as that would allow to inspect the certificate in the Certificate Manager.

Is that specific page opened in an (i)frame?

If "I Understand the Risks" is missing then this page may be opened in an (i)frame and in that case try the right-click context menu and use "This Frame: Open Frame in New Tab".

Gentleman_10
Gentleman_10 Question owner
more options

I am not sure what you mean by "iframe" but that page was opened in a regular tab. I dont find a right click which offers "open frame in a new tab"

guigs
guigs
more options

Hi Gentleman_10,

One way to check if it is in an iframe you can Right Click and "View Source" there will be an html tag with <iframe>. There will be a url in the src attribute that can help identify if it is in an iframe.

Gentleman_10
Gentleman_10 Question owner
more options

Thanks. When I clicked right and viewed the source I got the page in the pic attached. There was no iFrame option. I believe this problem could be solved if there was a way to tell Firefox to stop checking for certificates. Right now it doesn have that option.