### Is the feature relevant to the Firefox PDF Viewer? Yes ### Feature description I was all geared up to file a feature request for an equivalent to the `--find=STRING` option PDF readers like Okular, Evince, etc. have and then, while accumulating evidence for the "Other PDF viewers" list, I discovered that someone used PDF.js already having `search=` as an [argument](https://issues.chromium.org/issues/40553548#comment31) for adding it to Chrome's PDF viewer. > Because of this, I now need to use PDF.js from Mozilla Firefox and use that as it does have the ability to search. :/ Please update https://github.com/mozilla/pdf.js/wiki/Viewer-options to add it. ### Other PDF viewers _No response_