Mozilla has released an update for Firefox addressing many CVEs security flaws, most of them considered to be high risk.
To download the patch you need to update your Firefox to the latest edition. In its latest update “Firefox 77” it has addressed 8 of the security flaws, in which 5 were high risk flaws, out of these 5, 3 flaws are confirmed to allow arbitrary code execution, i.e browser could have loaded malicious pages leading to malware running on your system.
If you have not updated your Firefox yet, it is recommended to do so.
if you want to know more in detail about the flaws read our CVE page: