Ghostery is an anti-tracking ad-blocker available as an add-on for various browsers including Firefox, Chrome, Opera, Edge, Safari and Cliqz.
Ghostery was observed on 2019-06-27 to stop the images used in the Flag Template loading in Firefox 67.0.4 on Suse Linux, possibly because they were accessed as “mixed content”, i.e. via HTTP although Sensei’s Library uses HTTPS; the same can be expected for other mixed content. Telling Ghostery to trust this Sensei’s Library solves the problem.
- https://www.ghostery.com/ — Ghostery home page
- https://addons.mozilla.org/en-GB/firefox/user/10565426/ — Official add-on page for Firefox
- https://developer.mozilla.org/en-US/docs/Web/Security/Mixed_content?utm_source=mozilla&utm_medium=firefox-console-errors&utm_campaign=default — Firefox documentation of mixed content security policy
- https://developer.mozilla.org/en-US/docs/Web/Security/Mixed_content/How_to_fix_website_with_mixed_content — Firefox documentation which does not solve the problem with mixed content and Ghostery!