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.

ابحث في الدعم

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

sha-1

  • 2 (ردّان اثنان)
  • 2 have this problem
  • 5 views
  • آخر ردّ كتبه cor-el

more options

i have a website http://gefest.rads-doi.org/index.php/login and cant enter in, got an error "Этот сайт использует сертификат SHA-1; рекомендуется использовать сертификаты с алгоритмами подписи, использующими более сильные хеш-функции, чем SHA-1.[Подробнее] mc.yandex.ru", and all other script stops work. But in firefox on linux it works correctly, what is the problem. And also oncontextmenu doent works as it has to. On many browsers it works normally, and on firefox it doesn,t how can i fix it?

i have a website http://gefest.rads-doi.org/index.php/login and cant enter in, got an error "Этот сайт использует сертификат SHA-1; рекомендуется использовать сертификаты с алгоритмами подписи, использующими более сильные хеш-функции, чем SHA-1.[Подробнее] mc.yandex.ru", and all other script stops work. But in firefox on linux it works correctly, what is the problem. And also oncontextmenu doent works as it has to. On many browsers it works normally, and on firefox it doesn,t how can i fix it?

الحل المُختار

This is merely a notification meant for the website administrator that they should update their server software and this shouldn't affect the functionality. If there are problems then something else is wrong.


This issue can be caused by corrupted cookies or cookies that are blocked.

Clear the cache and remove cookies only from websites that cause problems.

"Clear the Cache":

  • Firefox/Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"

"Remove Cookies" from sites causing problems:

  • Firefox/Tools > Options > Privacy > "Use custom settings for history" > Cookies: "Show Cookies"

Start Firefox in Safe Mode to check if one of the extensions (Firefox menu button/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox menu button/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window
Read this answer in context 👍 0

All Replies (2)

more options

http://gefest.rads-doi.org/index.php/login I got to the login page with no problem.

This site uses the SHA-1 certificate; use certificates with the signature algorithm, using a stronger hash than the SHA-1. [More]

With the newest Firefox, some Security Certificates have been disabled because of issues with new mal-ware. Can you check with the site on what Security Certificates they are using? (SSL and TSL encryption protocols)

https://developer.mozilla.org/en-US/Firefox/Releases/37/Site_Compatibility#Security

https://blog.mozilla.org/security/2014/09/23/phasing-out-certificates-with-sha-1-based-signature-algorithms/

more options

الحل المُختار

This is merely a notification meant for the website administrator that they should update their server software and this shouldn't affect the functionality. If there are problems then something else is wrong.


This issue can be caused by corrupted cookies or cookies that are blocked.

Clear the cache and remove cookies only from websites that cause problems.

"Clear the Cache":

  • Firefox/Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"

"Remove Cookies" from sites causing problems:

  • Firefox/Tools > Options > Privacy > "Use custom settings for history" > Cookies: "Show Cookies"

Start Firefox in Safe Mode to check if one of the extensions (Firefox menu button/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox menu button/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window