Mozilla Releases Firefox 42 and Firefox ESR 38.4

Earlier today Mozilla made available Firefox 42 and Firefox ESR (Extended Support Release) 38.4.

Firefox 42 resolves 23 CVEs (defined) and 1 issue (not yet assigned a CVE). Firefox 42 also now incorporates Tracking Protection used in conjunction with Private Browsing. When broken down the severity of these issues is as follows:

8x critical severity CVEs
6x high severity CVEs
7x moderate severity CVEs and 1 moderate issue
2x low severity CVEs

Moreover, Firefox ESR 38.4 resolves 14 CVEs:
8x critical severity CVEs
5x high severity CVEs
1x moderate severity CVE

Full details of the security issues resolved by these updates are available in the following links:

Firefox 42
Firefox ESR 38.4

Details of how to install updates for Firefox are here. Mozilla Firefox updates generally install without issues, however as always I would recommend backing up the data on any device for which you are installing updates in order to prevent data loss in the rare event that any update causes unexpected issues.

Thank you.

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