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Does FF57 ends XUL add-on only or XUL applications( -app application.ini) too?

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Thank you for taking out time to investigate my query.

I use few standalone XUL applications using firefox.exe with "-app application.ini" CLI option for internal purpose. They also use XUL browser element. Could anyone please confirm that FF 57 and later would still support XUL application through "-app option". I understand any XUL add-on to Firefox browser would be disabled.

Regards, Manish

Thank you for taking out time to investigate my query. I use few standalone XUL applications using firefox.exe with "-app application.ini" CLI option for internal purpose. They also use XUL browser element. Could anyone please confirm that FF 57 and later would still support XUL application through "-app option". I understand any XUL add-on to Firefox browser would be disabled. Regards, Manish

All Replies (2)

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Firefox Release and Beta versions after Fx 56 will lose a lot of "legacy" features. Look to the pre-Release / pre-Beta "Nightly" version for ability to use features such as that.

https://www.mozilla.org/en-US/firefox/channel/desktop/ at the bottom

note: Beta and Developer Edition have been combined

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Thank you for your time and and response. Checking against nightly or beta build would be one approach, but is there a policy or announcement doc/link where road-map/timeline about support on XUL standalone using Firefox is described.

Regards, Manish