Ref# ADV2026_141 | Date: Mar 11th 2026

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Mozilla published a security advisory highlighting vulnerabilities in the following product on March 10^th, 2026. It is recommended that you take the necessary precautions by ensuring your products are always updated.

• Firefox – versions prior to 148.0.2

For more information on this update, you can follow this URL:

https://www.cyber.gc.ca/en/alerts-advisories/mozilla-security-advisory-av26-211

The Guyana National CIRT recommends that users and administrators review this update and apply it where necessary.

PDF Download: Mozilla Security Advisory

References

• Mozilla Security advisories. (March 10^th, 2026). Retrieved from Canadian Centre for Cyber Security
  https://www.cyber.gc.ca/en/alerts-advisories/mozilla-security-advisory-av26-211

 

• Mozilla Foundation Security Advisories. (n.d.). Mozilla. https://www.mozilla.org/en-US/security/advisories/

 

• Security Vulnerabilities fixed in Firefox 148.0.2. (n.d.). Mozilla. https://www.mozilla.org/en-US/security/advisories/mfsa2026-19/