new revision for dev build

new revision for dev build

fix gorhill#2283

new revision for release candidate

new revision for stable release

new revision for stable release

new revision for release build

new release: skip webext-hybrid and go pure webext

fix AMO error: "Legacy add-ons are not compatible with Firefox 57 or …

…higher. Use a maxVersion of 56.* or lower"

new revision for stable release