I have problem with IDM integration in FireFox Developer Edition (ex. Aurura) or FireFox Nightly (alpha) versions. What should I do?

Currently IDM does not support FireFox Developer Edition (ex. Aurura) and FireFox Nightly (alpha) versions.

Please don't ask us to fix compatibility problems urgently, we will add support for new versions of FireFox only when they move from development to beta stage.

If you are not a developer, probably you should not use developer edition of FireFox. We would advise you to use beta version of FireFox in this case.