- See https://www.mozilla.org/en-US/firefox/33.1/releasenotes/, , https://www.mozilla.org/en-US/firefox/tiles/ and https://support.mozilla.org/en-US/kb/forget-button-quickly-delete-your-browsing-history This is a special release celebrating the 10 years anniversary of the release of firefox 1.0. 34.0 will be released on the regular schedule in ~ two weeks.