Ask HN: Is there a Firefox extension for persisting a viewport, even fullscreen

There are hundreds of ways to uniquely identify a user visiting a website.

I'm focusing on the screen/device type area: Screen dimensions, refresh rate, dpi, and user agent.

Firefox and Chrome both support a feature in their dev tools, where you can adopt the screen dimensions of a common phone or tablet model.

Is there a Firefox extension that allows this "viewport" to be enabled all the time? I'd love to know that no matter what dimension I set my Firefox window to, or when fullscreen, it's always rendering a 1920x1080 "generic" viewport within it. All it needs to do is make it comfortable for me to pan around/zoom in/out.

I haven't seen an extension quite like this.

(Thank you)

2 comments

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tlb 3y ago ↗

You could just resize your browser window to a common size.

If the real goal is to avoid being tracked over long periods of time, then resizing to a slightly different size every day might work better.

thrwawy74 3y ago ↗

My thoughts are to look as generic as possible. Due to window decorations, desktop environments, etc, that viewport becomes identifying.

I understand there are several other ways to identify a web traveler, but I was hoping there was an extension that allowed you to use this dev tool setting persistently as an easy toggle-on/off.