See https://www.mozilla.org/en-US/firefox/78.1.0/releasenotes/
Fixes https://www.mozilla.org/en-US/security/advisories/mfsa2020-32/
More or less a copy of what was in www/mozilla-firefox before the 79.0
upgrade, including:
- enable unveil integration
- move to /etc/firefox-esr/{pledge,unveil}.{main,gpu,content}
instead of about:config knobs (maybe warrants current.html entry ?)
- bring in the jumbo patch fixing 'open with' mime handling
- stop building with systemwide sqlite3, unsupported upstream
- ditch old patches merged upstream in the 68->78 cycles
- use the shipped desktop file instead of our own
- sync README
briefly tested opening a pdf, an flv file and an archive with an
external handler, and accessed webcam with webrtc.
f7e1b2e56a