Stuck in a loop of installing forge

[Shyner]

So I have been trying to download forge but it didn´t work. Obviously. I don´t remember exactly how because I am stupid but I chose for the file to always be opened from firefox, and now I can´t change it. When I install it, it´s some weird firefox file and when I try open it it just sends me to the download again, so really I am just stuck in a loop of downloading it over and over and over. When I try change what to always open with it, I can´t find a file that would actually be able to open it (it´s all just games and similiar stuff and I don´t wanna break them on accident), so what do I do now?? As you can tell I am not good with computers

[Shyner]

Minecraft forge to be specific. Idk if it helps lol

[loordgek]

where did you get forge from