Hello,
I use a very good add-on in Firefox called BlockSite, if the link below does not run copy and paste in to the address bar.
https://addons.mozilla.org/firefox/downloads/file/220046/blocksite-1.1.8-fx.xpi?src=version-history
You can use wildcards in the site names you want to block. Enter your site you want to block as *tracksrv* and noting relating to that should get through.
This would only block the site and as others have suggested you need to remove the underlying cause.
I use a very good add-on in Firefox called BlockSite, if the link below does not run copy and paste in to the address bar.
https://addons.mozilla.org/firefox/downloads/file/220046/blocksite-1.1.8-fx.xpi?src=version-history
You can use wildcards in the site names you want to block. Enter your site you want to block as *tracksrv* and noting relating to that should get through.
This would only block the site and as others have suggested you need to remove the underlying cause.