Extension for Firefox and Chrome. (The extension can be installed via [this link](https://addons.mozilla.org/fr/firefox/addon/simple-modify-header/) for Firefox and via [this link](https://chrome.google.com/webstore/detail/simple-modify-headers/gjgiipmpldkpbdfjkgofildhapegmmic) for Chrome)
<emstyle="font-size:10pt"> * Information on URL patterns can be found <ahref="https://developer.chrome.com/extensions/match_patterns"target="_blank"> here.</a><br> An empty string on the field will select all URLs. It's possible to select multiple URL patterns using semicolon (;) separator </em>
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<ahref="https://github.com/didierfred/SimpleModifyHeaders/tree/v1.6.7"target="_blank"><spanclass="glyphicon glyphicon-question-sign"></span> About </a>
<ahref="https://github.com/didierfred/SimpleModifyHeaders/tree/v1.7.0"target="_blank"><spanclass="glyphicon glyphicon-question-sign"></span> About </a>