hello everyone
I need to use IDM but Mozilla firefox has blocked it!
if I can’t use the “internet download manager” add-on in the Firefox browser, I will not use this browser.
you should aware the users about this kind of extension instead of forcing them by blocking extension in browser 
you should give choice right to users that they can use this app by their responsibility 
Don’t infringe on users’ rights 
please put the button on the firefox browser to enabling blocked extensions and add-ons as soon as possible
regards
did you try this? https://addons.mozilla.org/en-US/firefox/addon/internet-download-manager-plus/?src=search
but it cant work as well as IDM original extension,
it can`t grab more than one link…
and there are not some major functions compared with IDM original extension.
it’s not useful!
thanks