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USN-5037-2: Firefox regression

25 August 2021

USN-5037-1 caused a regression in Firefox.

Releases

Packages

  • firefox - Mozilla Open Source web browser

Details

USN-5037-1 fixed vulnerabilities in Firefox. The update introduced a
regression that caused Firefox to repeatedly prompt for a password. This
update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information, trick a user into accepting unwanted permissions, or execute
arbitrary code.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 21.04
Ubuntu 20.04
Ubuntu 18.04

After a standard system update you need to restart Firefox to make
all the necessary changes.