about:config is only available in Beta or Nightly on Android now, though forks like Fennec also have it enabled by default.
They took it away in Stable because changing some settings may disconnect GeckoView from the application containing it and they can't have that.
I run Beta for this reason. Nightly is too unstable for me so I had to give up custom addon lists to bypass Mozilla's outdated whitelist (they were only available in nightly for a while, I believe that's in Beta now).
Mozilla doesn't trust you to use their precious software right and they'll take away your toys if it considers you to be playing with them wrong. I still like Mozilla over Google, Microsoft, and Apple, but it's really hard to be a fan of Firefox when they pull shit like this.
Yeah. It's only available in nightly. Which is fine so long as you're ok with things occasionally breaking or sudden vulnerabilities (I've dogfooded nightly on desktop and mobile for years and it definitely happens. Happened to me just last week) and you also have to be fine with downloading a huge package and writing it to your internal card basically every day which may be an issue with your plan, and after a few years, is also an extra thousand writes that you might have wanted to avoid (my last 3 phones have had replaceable batteries but not internal storage).
They took it away in Stable because changing some settings may disconnect GeckoView from the application containing it and they can't have that.
I run Beta for this reason. Nightly is too unstable for me so I had to give up custom addon lists to bypass Mozilla's outdated whitelist (they were only available in nightly for a while, I believe that's in Beta now).
Mozilla doesn't trust you to use their precious software right and they'll take away your toys if it considers you to be playing with them wrong. I still like Mozilla over Google, Microsoft, and Apple, but it's really hard to be a fan of Firefox when they pull shit like this.