Last release was done on June 2, 2020: https://www.mozilla.org/en-US/firefox/77.0/releasenotes/ https://www.mozilla.org/en-US/firefox/77.0/releasenotes/ The pr

Last release was done on June 2, 2020: https://www.mozilla.org/en-US/firefox/77.0/releasenotes/ https://www.mozilla.org/en-US/firefox/77.0/releasenotes/ The previous one was done on May 5, 2020: https://www.mozilla.org/en-US/firefox/76.0/releasenotes/ https://www.mozilla.org/en-US/firefox/76.0/releasenotes/ And the one before on April 7, 2020: https://www.mozilla.org/en-US/firefox/75.0/releasenotes/ https://www.mozilla.org/en-US/firefox/75.0/releasenotes/ More or less, one release per month. Hardly "every week".