fix: firefoxPreview option should be set to mv3 only when explicitly requested #2454
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The --firefox-preview web-ext option we introduced in v7.1.0 should not default to mv3 if it wasn't explicitly passed as an option (either on the command line or through the web-ext config file).
Unfortunately setting a default value through the yargs
default
property will always setargv.firefoxPreview
to['mv3']
even when it is not explicitly passed,demandOptions
set tofalse
makes the cli option not mandatory but it doesn't ignore the default value.This PR adds an additional test case to make sure that
argv.firefoxPreview
isundefined
when not explicitly passed as an option, and a small tweak to program.js that make sureargv.firefoxPreview
defaults to['mv3']
if it was set to an empty array (and so when--firefox-preview
was explicitly passed but without any value specified explicitly).