Except where noted, everything here applies to both Firefox 118 and the Firefox 115.3 ESR.
- If the Firefox Relay preference (signon.firefoxRelay.feature) was locked via policy, it was not disabled in the preferences UI. This was fixed in bug 1844615.
- A new preference has been added (browser.download.force_save_internally_handled_attachments) that forces files whose type is internally handled by Firefox to be downloaded when the value
downloadof the HTTP header
Content-Dispositionis specified on the link. For more information, see bug 1811830.
- The FirefoxSuggest policy has been added to manage Firefox Suggest (US only).
- The Preferences policy has been updated to allow setting the preferences security.ssl.require_safe_negotiation and xpinstall.whitelist.required.
As of this release, Firefox 102 ESR is officially out of support.