Ref# ADV2021_100 | Date: Jul 14th 2021

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Mozilla has published a security advisory, highlighting vulnerabilities in Firefox & Firefox ESR on 13th July, 2021. It is recommended that you take the necessary precautions by ensuring your products are always updated.

• Firefox 90
• Firefox ESR 78.12
• Thunderbird 78.12

For more information on these Mozilla update you can follow these URLs:

https://www.mozilla.org/en-US/security/advisories/mfsa2021-28/ https://www.mozilla.org/en-US/security/advisories/mfsa2021-29/ https://www.mozilla.org/en-US/security/advisories/mfsa2021-30/

The Guyana National CIRT recommends that users and administrators review these updates and apply them where necessary.

PDF Download: Mozilla Releases Security Updates for Firefox, Firefox ESR Thunderbird.pdf

References

• Mozilla releases security updates (13th July, 2021). Retrieved from US-Cert.

         https://us-cert.cisa.gov/ncas/current-activity/2021/07/13/mozilla-releases- security-updates-firefox

• Mozilla releases security updates (13th July, 2021). Retrieved from Mozilla

         https://www.mozilla.org/en-US/security/advisories/