Searching through the code for other occurrences of broken links to the privacy & security page, I only found one other, much less commonly used link to the site data settings that I'll just include in this bug: https://searchfox.org/firefox-main/rev/3c918058f580ec2cd39d80c9f77ccd06982c0029/browser/base/content/browser.js#1093. Reproducing that one is a bit harder, as it just shows up when disk space is low and Firefox is using up a lot of space. The easiest way to trigger that is to just run [browser_storagePressure_notification.js](https://searchfox.org/firefox-main/rev/3c918058f580ec2cd39d80c9f77ccd06982c0029/browser/base/content/test/general/browser_storagePressure_notification.js) with a `await new Promise(() => {});` added in line 118, which will show the notification in the attached screenshot with a (currently broken) link to the site data settings.
Bug 2020354 Comment 3 Edit History
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Searching through the code for other occurrences of broken links to the privacy & security page, I only found one other, much less commonly used link to the site data settings which I'll just include in this bug: https://searchfox.org/firefox-main/rev/3c918058f580ec2cd39d80c9f77ccd06982c0029/browser/base/content/browser.js#1093. Reproducing that one is a bit harder, as it just shows up when disk space is low and Firefox is using up a lot of space. The easiest way to trigger that is to just run [browser_storagePressure_notification.js](https://searchfox.org/firefox-main/rev/3c918058f580ec2cd39d80c9f77ccd06982c0029/browser/base/content/test/general/browser_storagePressure_notification.js) with a `await new Promise(() => {});` added in line 118, which will show the notification in the attached screenshot with a (currently broken) link to the site data settings.