Make it easier to change User Agent

[KERR]

Sometimes for testing or troubleshooting, you want to see if a site would work if you changed the user agent eg. Chrome.

This specific website soft-blocks Firefox, but works fine if you set the UA to Chrome: https://england.nhs.attendanywhere.com/

Unless I'm missing something - in Firefox you have to manually type in/edit the User Agent string, or use one of the baked in device profiles:

There's some annoyances with this:

•  The device profiles are device-centric - there's no way to choose by browser/OS etc
•  The UA field is not resizeable - you can never see the entire string
• You have to type/guess/copy+paste a UA string from the internet

Chrome/Edge makes this much easier:

This would be handy in Firefox and would also save having to install a UA-switcher add-on.

Cheers

[Jon]

Thanks for submitting an idea to the Mozilla Connect community! Your idea is now open to votes (aka kudos) and comments.

[superuser]

Please report broken sites to Webcompat.com . There's already a report about that specific site: england.nhs.attendanywhere.com - Firefox is an unsupported browser.

Telling users to spoof their User-Agent string is a bad idea. This makes it look like Firefox has even fewer users than it does, which just encourages more sites to stop supporting it.

[Honza]

Nice idea, thank you for posting!

I created a report, so it isn't forgotten here.

https://bugzilla.mozilla.org/show_bug.cgi?id=1816668