Facebook.com and youtube.com; firefox says they don't recognize thier certificate issuer. How do I fix this?
MOZILLA_PKIX_ERROR_KEY_PINNING_FAILURE
This error also appears, yesterday I didn't have this problem.
Все ответы (2)
Separate Security Issue: Update your Flash Player Note: Windows users should download the active_x for Internet Explorer. and the plugin for Plugin-based browsers (like Firefox).
Note: Windows 8 and Windows 10 have built-in flash players and Adobe will cause a conflict. Install the plugin only. Not the active_x.
Flash Player Version: 24.0.0.194
https://get.adobe.com/flashplayer/ Direct link scans current system and browser Note: Other software is offered in the download. <Windows Only>
https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) Note: Other software is offered in the download. <Windows Only>
See if there are updates for your graphics drivers https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration
There is security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connections and send their own certificate.
How to troubleshoot the error code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites