It absolutely breaks on Firefox forks including Nightly and Developer. Have to manually point to firefox executable from idm taskbar>options every time and even then it isn't reliable. I raised support many months ago and things have only gone worse

Protip: disable autoupdates for this extension. Or download an older version that works with your desktop version.

IDM 642Build63 stopped working on Thursday, May 14, 2026, on Firefox 150.03, as well as on Nightly and Brave. I haven't tested it on other browsers.

Current idm '6.42 build 63' works like 70% of the time (meaning the download button shows up) on youtube on firefox 149.0 portable.
Which is better than the previous version for sure. But... not fully there yet. Keep improving it.

I really enjoy using IDM, but I'd like this plugin to have an additional feature: to allow IDM to be set to off by default, so I can only turn it on when I really need to download.

Absolute garbage now , I can't download any videos now but can download web pages which is useless to me .

افزونه IDM Integration Module نصب و استفاده راحتی داره و دانلود فایل‌ها از مرورگر رو خیلی سریع و مستقیم می‌کنه. تجربه من خیلی خوب بوده!

best of best

When i used it, it whined about "missing config files" and when i used my laptop a few days later,it lagged it sooooo hard. worst extention ever!