How to change user agent in Android manually (using Firefox)

NOTE: The config page has been removed on the ❌stable Firefox ❌ version on Android. However, it's still possible to access it on the ✅ Firefox Beta✅ version on Android.
___________Links_____________

about:config

Firefox for Android:

User agent string lists:

[MimasAnimations]

Important: It only works with Firefox Nightly
Edit: It doesnt work with the User Agent shown in this video. It worked for me with the user agent in January 2021 for using Whatsapp Web for my android tablet: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0
cheers!

[MixTapeOnTime]

The best video in 2022 the update you put in description is the real help it worked for me right away
Thanks alot

[haruncankaya]

Whick version of mozilla did you use in the video?

[marcusoriasotie]

Hello
I've been trying to add random user agent to firefox but whenever I search for "about:config the right link to it isn't available i don't know why or is there any other browser to be use?

[davidnguyen]

Hi Man, thanks for you vid, i followed all your steps but my user agent does not change, i dont know why, i used this one: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_6; en-en) AppleWebKit/533.19.4 (KHTML, like Gecko) Version/5.0.3 Safari/533.19.4


Is it possible that some useragent does not Work?
Thanks

[KINGOFDARKNESS]

About config doesnt work on my version, anyone has a solution or alt solution to edit user agent? Thanks