The tests currently running against chromium do not expect the content blocking
to be enabled. So, to prevent breaking cookies/requests being done by the tests,
disable it by default when running the agent.
Differential Revision: https://phabricator.services.mozilla.com/D31993
--HG--
extra : moz-landing-system : lando
The node program (puppeteer) and/or the agent itself, will close Firefox brutaly
in some cases. So that when we reopen Firefox, the safe mode popup will be shown,
asking the user if he prefers to start in safe mode.
But that break the automation as we expect Firefox to be opening the browser window as usual.
Differential Revision: https://phabricator.services.mozilla.com/D31992
--HG--
extra : moz-landing-system : lando