this post was submitted on 10 Jun 2024
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If you just need to intercept the keypresses in webpages then you can inject a content script and handle these. However there is no way with the new WebExtensions API to intercept browser chrome events.
Additionally there is no way to delay events. So if you want to suppress both shift presses you will struggle to do that. If you are ok to let the first one go through suppressing the second one is trivial.
Thanks, @[email protected]. That sums up my options.