Modify Headers DNR
Modify request and response headers through the DeclarativeNetRequest API
Modify Headers DNR
Add-on stats
Weekly download count: NaN
Firefox on Android: Yes
Risk impact: Moderate risk impact 
Risk likelihood:
Manifest version: 3
Permissions:
- declarativeNetRequest
- declarativeNetRequestFeedback
- storage
Host permissions:
- <all_urls>
Size: 75.14K
URLs: Website
Ranking
Other platforms
Not available on Chrome
Not available on Android
Not available on Edge
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Add-on summary
You can set, append and remove various HTTP headers on both request and response. This add-on differs from others in that it uses the MV3-compatible "DeclarativeNetRequest" API which means that the browser itself handles all the modifying logic.
NOTE: Modified response headers won't be shown in the network console but they are still applied.
Add-on safety
Risk impact
Modify Headers DNR requires a few sensitive permissions. Exercise caution before installing.
Risk likelihood
Modify Headers DNR may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.
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