Block Service Workers

Disallow to register Service Workers
What is Block Service Workers?
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

Users: 20 ▼ -1
Rating: 4.75 (4)
Version: 0.3.7resigned1 (Last updated: 2024-04-26)
Creation date: 2018-09-03
Weekly download count: 2
Firefox on Android: Yes
Risk impact: High risk impact
Risk likelihood: Moderate risk likelihood
Manifest version: 2
Permissions:
  • tabs
  • storage
  • notifications
Size: 59.18K

Other platforms

Block Service Workers (v1.1.0)
4.45 (11) 1,000
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


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
View all user reviews

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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