[Trisquel-users] Searx.me as add-on in Abrowser?

[svenerik_vn]

When I search for searx.me here: https://trisquel.info/en/browser/addons
I'm directed here: https://trisquel.info/en/browser/addons/searxme

But when I click on "Install extension", the next page says "Your version of  
Firefox does not support search plugins."

I've attached a screenshot.

Does everyone get this message? If so, why is searx.me in the repository if  
it is impossible to install?