Block Service Workers
Disallow to register Service Workers
Block Service Workers - Firefox add-on
Block Service Workers is a Firefox add-on that disallows the registration of Service Workers. Service Workers are a type of web technology that allows websites to run scripts in the background, even if the website is closed or not actively being used. With this add-on, users can prevent websites from utilizing Service Workers, providing more control over their browsing experience.
Add-on stats
Weekly download count: 2
Firefox on Android: Yes
Risk impact: High risk impact 
Risk likelihood:
Manifest version: 2
Permissions:
- tabs
- storage
- notifications
Size: 59.18K
Ranking
Other platforms
Not available on Android
Not available on Edge
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User reviews
It is first addon that really blocks that annoying service-workers feature (in my opinion - SW's is just another tricky way to track you or deliver something malicious to your browser using cache) . I wonder if there is version for chrome?
by Valryan, 2020-11-07
by Firefox user 12591219, 2020-10-29
Works well. Would rate five stars if allowed site exceptions. Must disable add-on to log into sites that require service workers. Otherwise works well.
by Andre Bell, 2019-05-13
Add-on safety
Risk impact
Block Service Workers requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk likelihood
Block Service Workers is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.
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