Note: it looks like based on
@catsaladCat 🐈🥗 (D.Burch)
's https://infosec.exchange/@catsalad/115267961741040364 Firefox is doing something nasty where it removes the "chrome://" prefix from anything you paste into the URL bar. So you need to manually re-type it after pasting. Or paste it into bookmark contents and use the bookmark, if that works.
@daliasCassandrich
@catsaladCat 🐈🥗 (D.Burch)
interesting. When you copy it with a leading space included it is not filtered and works without having to remove the space.
" chrome://geckoview/content/config.xhtml"
You can then toggle the setting general.aboutConfig.enable to true to enable about:config again.
The Fennec build (available on F-Droid) does not have this limitation, you can just visit about:config right away.
If you have a fediverse account, you can quote this note from your own instance. Search https://mstdn.io/users/jomo/statuses/115268107473649457 on your instance and quote it. (Note that quoting is not supported in Mastodon.)