Firefox 66.0.3

Archive
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Mozilla plans to release Firefox 66.0.3, a minor upgrade to the web browser's stable channel, later today on April 10, 2019. Firefox 66.0.3 addresses several specific issues that affect some users who use the web browser. There is no hurry to upgrade to the new version if you are not affected by the issues. For more info go here.   https://www.ghacks.net/2019/04/10/mozilla-releases-firefox-66-0-3/

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Mozilla still on track to enable DNS-over-HTTPS by default in Firefox by Martin Brinkmann on April 10, 2019 
https://www.ghacks.net/2019/04/10/mozilla-still-on-track-to-enable-dns-over-https-by-default-in-firefox/

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Firefox 66.0.3 released April 10, 2019. Available via Internal Updater. (4.7 MB - 64-bit)

https://www.mozilla.org/en-US/firefox/66.0.3/releasenotes/

https://www.mozilla.org/en-US/firefox/all/