[Mozilla Announce] Firefox ESR 140.8 released

"'Donal Meehan' via [email protected]" <[email protected]> Tue, 24 Feb 2026 10:25:49 -0500
Newsgroups gmane.comp.mozilla.announce
Message-ID <CAP5bjnwOzm5trVGJy0gDYzOYvXDxh-Uvx1mFQopp1MgNUEmhzA@mail.gmail.com>
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We are pleased to announce that the Firefox ESR 140.8 release is now
available for download at https://www.firefox.com/download/all/desktop-esr/.

Release notes for Firefox 140.8.0esr are available at
https://www.firefox.com/firefox/140.8.0/releasenotes/.
Associated security advisories are posted at:
https://www.mozilla.org/security/advisories/mfsa2026-15/

Firefox ESR 115.33.0 is also now available for Windows 7-8.1 and macOS
10.12-10.14 users per the previously-announced window of extended security
support for that release.

Release notes for Firefox 115.33.0esr are available at
https://www.firefox.com/firefox/115.33.0/releasenotes/.
Associated security advisories are posted at:
https://www.mozilla.org/security/advisories/mfsa2026-14/

As always, we recommend that users keep up to date with the newest version
of
Firefox ESR for the latest stability and security fixes.

Thank you,
Donal Meehan,
Firefox Release Manager

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<div dir=3D"ltr"><div dir=3D"ltr"><div><span style=3D"font-size:10pt;font-f=
amily:Arial;font-style:normal">We are pleased to announce that the Firefox =
ESR 140.8 release is now<br>available for download at <a href=3D"https://ww=
w.firefox.com/download/all/desktop-esr/" target=3D"_blank">https://www.fire=
fox.com/download/all/desktop-esr/</a>.<br><br>Release notes for Firefox 140=
.8.0esr are available at<br><a href=3D"https://www.firefox.com/firefox/140.=
8.0/releasenotes/." target=3D"_blank">https://www.firefox.com/firefox/140.8=
.0/releasenotes/. </a><br>Associated security advisories are posted at:<br>=
<a href=3D"https://www.mozilla.org/security/advisories/mfsa2026-15/" target=
=3D"_blank">https://www.mozilla.org/security/advisories/mfsa2026-15/</a><br=
><br>Firefox ESR 115.33.0 is also now available for Windows 7-8.1 and macOS=
<br>10.12-10.14 users per the previously-announced window of extended secur=
ity<br>support for that release.<br><br>Release notes for Firefox=C2=A0115.=
33.0esr are available at<br><a href=3D"https://www.firefox.com/firefox/115.=
33.0/releasenotes/." target=3D"_blank">https://www.firefox.com/firefox/115.=
33.0/releasenotes/. </a><br>Associated security advisories are posted at:<b=
r><a href=3D"https://www.mozilla.org/security/advisories/mfsa2026-14/" targ=
et=3D"_blank">https://www.mozilla.org/security/advisories/mfsa2026-14/</a><=
br><br>As always, we recommend that users keep up to date with the newest v=
ersion of<br>Firefox ESR for the latest stability and security fixes.<br><b=
r>Thank you,</span></div><div><div dir=3D"ltr" class=3D"gmail_signature" da=
ta-smartmail=3D"gmail_signature"><div dir=3D"ltr"><font color=3D"#888888">D=
onal Meehan,<br>Firefox Release Manager</font></div></div></div></div>
</div>

<p></p>

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