Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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.

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

should I delete certificates on my computer from TURKTRUST? I've seen several notices from Microsoft saying to untrust these?

  • 2 replies
  • 3 have this problem
  • 4 views
  • Last reply by TheOldFox

more options

There are many certificates on my computer, several in foreign languages, many also from financial companies I do not do business with. Are there security risk with any of these and should I delete these? I only looked at these because recently, while viewing emails, something is locking up. My ISP is FIOs and every website I use, shows the speed at better than 50/25.

Is there a complete list of certificates authorized by Mozilla?

There are many certificates on my computer, several in foreign languages, many also from financial companies I do not do business with. Are there security risk with any of these and should I delete these? I only looked at these because recently, while viewing emails, something is locking up. My ISP is FIOs and every website I use, shows the speed at better than 50/25. Is there a complete list of certificates authorized by Mozilla?

Chosen solution

hello RomaCronus, here is a list of all currently included certificates: https://www.mozilla.org/projects/security/certs/included/

Read this answer in context 👍 2

All Replies (2)

more options

Chosen Solution

hello RomaCronus, here is a list of all currently included certificates: https://www.mozilla.org/projects/security/certs/included/

more options

Leave certificates alone unless you know what you are doing, even foreign language certificates.

There was a problem with TurkTrust CAs in January 2013, but Mozilla has already taken care of that. Subsequent review and verification led Mozilla to restore one valid certificate from TurkTrust.