I run uBlock Origin on all my Firefox installs. Windows worked. Next guess?uBlock origin interferes with the test, so try whitelisting the site if you are running uBlock Origin.
Force an update of the EasyPrivacy list on your Linux Firefox uBlock Origin. It failed for me earlier, and after forcing a list update, now it works. No guessing necessary when you look into the details of what's happening.I run uBlock Origin on all my Firefox installs. Windows worked. Next guess?
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