A browser extension that modifies the browser's User-Agent string, related Client Hints headers and the navigator.userAgentData object. It can apply custom or randomized User-Agent strings per tab or hostname and deactivates when the default string is used.
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User-Agent String Switcher is a Firefox browser extension that spoofs the browser's user-agent string to prevent websites from collecting information about the user's browser type, operating system, and browsing configuration, allowing users to receive preferred site content. It allows custom user-agent strings to be set via the toolbar popup, uses a two-factor technique to replicate the default user-agent string for reliability, and consumes no resources when not actively spoofing. A common use case is setting a mobile user-agent string to load faster-loading mobile versions of websites.