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Updated Optional Hardening (markdown)

yokoffing
2026-05-13 21:31:14 -04:00
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Optional-Hardening.md
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@@ -211,7 +211,7 @@ For Option 2, you can create exceptions to stay logged in to some sites between
### Service Workers
Service workers cache a web page's content before it loads, which allows the content to load a few milliseconds faster on return visits. Service workers also let you receive [push notifications](https://support.mozilla.org/en-US/kb/push-notifications-firefox#w_how-do-i-stop-firefox-asking-me-to-allow-notifications) from sites even after you close the site, behavior which Betterfox [blocks](https://github.com/yokoffing/Betterfox/blob/392c62a03c0d63e323a9aae55bc9aff87454db16/Securefox.js#L1461-L1467) by default.
Service workers are scripts any website can install silently. They persist after you close the tab and maintain contact with the remote server. For instance, sites like Reddit use them for caching notifications when the site isn't loaded and telemetry (notification interactions). You can see yours at `about:serviceworkers`.
Service workers also persist after you close the tab and maintain contact with the remote server. For instance, sites like Reddit use them for caching notifications when the site isn't loaded and telemetry (notification interactions). You can see yours at `about:serviceworkers`.
Service workers phone home to sites you’ve already closed; and when you close a tab, you likely don’t want that site sending you notifications anyway. The minor speed improvement is not worth the loss of control.