Disable Firefox Same Origin Policy without installing a plugin : <p>Is there a way to disable the <a href="https://en.wikipedia.org/wiki/Same_origin_policy" rel="noreferrer">same origin policy</a> on the Mozilla Firefox browser <strong>by toggling a flag in the browser</strong>?</p>

<p>This is strictly for development, for not production use.</p>

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<p>Please note: </p>

<p>A <a href="https://stackoverflow.com/questions/17088609/disable-firefox-same-origin-policy">similar question</a> asked 3+ years ago yielded an accepted answer that recommends users to install a plugin. I consider this less secure and more cumbersome than toggling a flag (e.g. in the about:config, or passing a parameter when starting the browser <a href="https://stackoverflow.com/questions/3102819/disable-same-origin-policy-in-chrome">like in Chrome</a>). </p>
