[Mozilla Announce] Firefox ESR 140.11 released

"'Donal Meehan' via [email protected]" <[email protected]> Tue, 19 May 2026 11:45:35 -0400
Newsgroups gmane.comp.mozilla.announce
Message-ID <CAP5bjnyOtdy8cDuTKLT2Ujs6p8cXbzCmGqNjihKWHxaqr=iWjw@mail.gmail.com>
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We are pleased to announce that the Firefox ESR 140.11 release is now
available for download at https://www.firefox.com/download/all/desktop-esr/.

Release notes for Firefox 140.11.0esr are available at
https://www.firefox.com/firefox/140.11.0/releasenotes/.
Associated security advisories are posted at:
https://www.mozilla.org/en-US/security/advisories/mfsa2026-48/

Firefox ESR 115.36.0 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 115.36.0esr are available at
https://www.firefox.com/firefox/115.36.0/releasenotes/.
Associated security advisories are posted at:
https://www.mozilla.org/en-US/security/advisories/mfsa2026-47/

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 140.11 release is now available for download at <a href=3D"https://www.=
firefox.com/download/all/desktop-esr/" target=3D"_blank">https://www.firefo=
x.com/download/all/desktop-esr/</a>.<br><br>Release notes for Firefox 140.1=
1.0esr are available at<br><a href=3D"https://www.firefox.com/firefox/140.1=
1.0/releasenotes/" target=3D"_blank">https://www.firefox.com/firefox/140.11=
.0/releasenotes/</a>.<br>Associated security advisories are posted at:<br><=
a href=3D"https://www.mozilla.org/en-US/security/advisories/mfsa2026-48/" t=
arget=3D"_blank">https://www.mozilla.org/en-US/security/advisories/mfsa2026=
-48/</a><br><br>Firefox ESR 115.36.<span style=3D"border-style:none;backgro=
und:none">0</span> is also now available for Windows 7-8.1 and macOS 10.12-=
10.14 users per the previously-announced window of extended security suppor=
t for that release.<br><br>Release notes for Firefox=C2=A0115.36.0esr are a=
vailable at<br><a href=3D"https://www.firefox.com/firefox/115.36.0/releasen=
otes/" target=3D"_blank">https://www.firefox.com/firefox/115.36.0/releaseno=
tes/</a>. <br>Associated security advisories are posted at:<br></span><a hr=
ef=3D"https://www.mozilla.org/en-US/security/advisories/mfsa2026-47/">https=
://www.mozilla.org/en-US/security/advisories/mfsa2026-47/</a><br><span styl=
e=3D"font-size:10pt;font-family:Arial;font-style:normal"><br>As always, we =
recommend that users keep up to date with the newest version of Firefox ESR=
 for the latest stability and security fixes.<br><br>Thank you,</span></div=
><div><div dir=3D"ltr" class=3D"gmail_signature" data-smartmail=3D"gmail_si=
gnature"><div dir=3D"ltr"><font color=3D"#888888">Donal Meehan,<br>Firefox =
Release Manager</font></div></div></div></div>
</div>

<p></p>

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