when i press the "install" button i get a yellow notification from the site that says "apps and extensions cant be downloaded from this site", i am guessing because the website has a green secure lock on it. what is the solution please? :(

you tried right-clicking on green lock icon?

when i press the "install" button i get a yellow notification from the site that says "apps and extensions cant be downloaded from this site", i am guessing because the website has a green secure lock on it.

We have nothing like this. This is probably a third-party program on your machine that is affecting installs through the browser.

what is the solution please?

Try the following:

1. A clean browser profile
2. Disable whatever program is doing this on your end. I realized when you posted this that prefetching in some browsers might ignore the robots.txt and nofollow attributes so that is their issue not ours for triggering the attack prevention if your program that does this is reading the status codes incorrectly. e.g. disable prefetching... besides it will save bandwidth especially on portable devices where it's at a premium.