Hello, I started to experience a problem with Mull and Duolingo (and also bromite) that started about 1 month ago.
Basically Duolingo tells me that my browser is not supported but it worked perfectly fine before. Anyone experienced this issue? I can’t find an issue on mull repo apparently about this specific issue. Dunno if it is something about resisting fingerprint but I wonder why that happens…
You can try with an extension that changes the user agent of your browser; if you use the one from either firefox or chrome for android it should work. Usually its the only thing checked by sites when identifing browsers for non telemetry reasons; if the problem persists I’m not sure what it could be
Tried and didn’t work…
Then it may be something that mull is blocking to prevent fingerprinting that duolingo doesn’t like, I don’t know how to help in this case other than installing something like fennec in a work profile with shelter; sorry.
Mulls user agent is firefox
It is Firefox ESR
No its not, at least for me:
Mozilla/5.0 (Android 10; Mobile; rv:122.0) Gecko/122.0 Firefox/122.0
No it’s not. Mull is built from the latest version of Firefox for Android, which currently is 122.
Yes but RFP unifies the fingerprint to look like Firefox ESR on Windows.
Not sure about android though, and disabling RFP didnt fix the issue
Afaik all custom FF Android versions use Nightly, but I am not sure about that.
Not on Android. I have it enabled and my user agent is Firefox 122 on Android.
But yes, Mull is built from Firefox Nightly (actually from Fennec Nightly, which removes all proprietary blobs).
I pretty much instantly lose respect for people who design sites to only support specific browsers. With the exception of Firefox, it’s all Chromium anyway so they don’t really need to worry about it. This isn’t like when Internet Explorer was a thing and broke web pages.
i guess it’s not about the actual site not supporting some browser. it’s usually about not wanting to deal with users that have problems with the page in some obscure browser caused by some random plugin or something but the user blaming it on the service. or because of tracking.
So do feature testing, not user-agent sniffing! For Pete’s sake, it’s 2024! That’s been the best practice for decades!
I used to work for a web hosting company and have seen so many horror cases that I agree with you that this is what is happening. I also think it’s kinda lazy to just say that they won’t support what people are using because it’s hard. Even 5 - 7 years ago, this was much harder than it is now.
what on gods sake are they doing so special that requires those browsers explicitly
I’m guessing they don’t want to test on any other browsers, so it’s easier just to say that those aren’t supported. Most likely it works on others, you just need to spoof the agent.
This is definitely the case, but I wonder why companies don’t add a button, such as “Access website without support”, that would get you to the site while clearly telling you that any technical problems (of which, in 99% of cases, there will be none, since all of this seems like supporting Google internet dominance) will be ignored by support.
Sir, this is the internet. Morons will still complain about broken things in public forums even if you make them click through multiple dialogue boxes and popups with warnings in flashing text.
Fair enough. But again, I seriously doubt that Duolingo uses something not supported in Firefox…
Most likely it works on others, you just need to spoof the agent.
I have both Mull and vanilla Firefox on Android, they use all the same headers (including User-Agent) according to DuckDuckGo’s “what’s my user agent” tool.
My guess is that the same defaults that makes Mull more private also disables either cookies or scripts that Duolingo expects to be able to use.
That’s my guess as well. Their mobile app updates feel like they are only there to circumvent adblockers and stopped working all together months ago.
They might not actually require them, but simply display this message if some features detection code fails
Removed by mod
Hey, I don’t want to discourage your language learning, but duolingo really sucks as a language learning platform. It honestly doesn’t teach you anything about actually using a language.
You might be much better served by using something like babbel, memrise or even better, Rosetta Stone. They are paid options, but well worth the price I think.
We got it for funsies and went through the final Spanish test. We’re both fluent speakers, he’s native. We were unable to pass the final tests–not because we didn’t speak Spanish, but because it was actually a subjective interpretation of what was being said rather than an objective one, btu they treated it like it were objective. Basically you have to learn it THEIR way. As a linguist, this is a big no-no and I walked away.
This is the answer.
Rosetta Stone is there under the black flags too.
I would love to switch to something else but I have not found anything that peopme say is good that offers Norwegian. Do you have any suggestions?
I mean, at least it allows for more than just Chrome. You can do worse.
privacy.resistfingerprinting = true
reports the Browser as “Firefox ESR”. Not sure if this even exists on mobile tbh.Added an Extension to my collection to toggle RFP
But for me Duolingo also displayed that after switching my Browser agent to “Chrome 121 Android 14” and also “Firefox 122 Android 14”.
Fuck that app.
Duolingo lost me when they decided to do away with user discussions. Can’t believe they threw away all that.
I think you better vanish
Mull should say its Firefox. What extensions do you have installed?
I just have ublock origin. Could it be possible that the “ESR” is fooling duolingo? I tried with an user agent tho but I had no luck
It reports ESR
Not for me:
Mozilla/5.0 (Android 10; Mobile; rv:122.0) Gecko/122.0 Firefox/122.0
Ok then this is only a Desktop thing
And this is a privacy issue?
They’re are extensions/addons for this