maurix wrote:I don't think I can. Meaning that if I try to do it, a message appear saying "firefox prevented the installation from this site".
NoScript 5.1.3 should install just fine in FF 45.
FF uses a default list of sites that are allowed to install extensions.
noscript.net is not one of them.
By default you should be getting a "Firefox prevented this site from asking you to install software on your computer." prompt.
You would need to Allow that.
And then there should be a secondary prompt, prompting for the Install itself.
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.19) Gecko/20110420 SeaMonkey/2.0.14 Pinball NoScript FlashGot AdblockPlus
Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:52.0) Gecko/20100101 Firefox/52.0 SeaMonkey/2.49.1 Lightning/5.4