Cookie Override
Allows to add rules to force specific cookie values whenever a website is visited
What is Cookie Override?
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Summary
The extension allows to add rules overriding specific cookie values whenever a website producing the cookie is visited. This allows, for example, to persist and force website preferences like language and location despite removing cookies on browser exit. The preferences can be stored as rules in the extension settings and applied automatically when a page is visited, while keeping the page unaware of the user's previous visits.
More information https://github.com/rafbiels/cookie-override
Known limitations The override cannot work on any website which uses scripts to auto-configure the cookies on every visit even if the cookie is already present. Such scripts keep overriding the Cookie Override changes.
Safety
Risk impact
Cookie Override is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install Cookie Override if you trust the publisher.
Risk likelihood
Cookie Override has earned a fairly good reputation and likely can be trusted.