Offline Caching
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Add-on summary
This add-on enables offline caching on any web site or app, even those that aren't developed with this feature in mind, allowing use when Internet isn't available. This works by injecting a dedicated Service Worker on any host you choose via the popup menu, so it has the benefit of using an established and well-tested web technology to do its job. Due to Service Workers limitations, keep in mind that this only works on HTTPS sites and outside of private browsing mode.
User reviews
Add-on safety
Risk impact
Offline Caching requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk likelihood
Offline Caching is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.