[Q] How to create a self-hosted package app? - Firefox OS Q&A

I have created self-hosted package app for firefox os. I have followed the doc on mdn. When I install the app, app is opening with showing splash screen. but app isn't showing index.html file in package. What is the error?
(Sorry for my bad english)

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HELP with android script+ modify xml

Hello everyone, this is the only place where I could ever find help to my project.
I need to create a script that opens url that redirects to playstore,
example: the script will open the url that redirects to a specific game or app and then the app opens itself from playstore.
the app should open only if it is already installed, not if there is BUY option or free install option.
is it possible?? somebody could points me toward the open button option in the ps apk??

Extract files from an encrypted app

Hi guys
_I have a problem with an app called
"Aplus centre"
_however, this app contains some pdf files that I really need
_those pdfs are downloaded every time i open the app and deleted after closing it
_I need help to get those pdf as files so i can print them
_app name on play store: "Aplus centre". and it's the only app with that name
_app link on play store:
play.google.com/store/apps/details?id=application.acenter.alisaleh.gsoftcompany
hope an expert sees my thred
peace

Extract files from an encrypted app

Hi guys
_I have a problem with an app called
"Aplus centre"
_however, this app contains some pdf files that I really need
_those pdfs are downloaded every time i open the app and deleted after closing it
_I need help to get those pdf as files so i can print them
_app name: "Aplus centre"
_app link on play store: play.google.com/store/apps/details?id=application.acenter.alisaleh.gsoftcompany
hope an expert sees my question
peace
Use file explorer
Open the app so that the PDF files are downloaded. Then keep the app open, don't close it.
Go to your Android file explorer and go to Android>data.
In this look for the app name. Must be something like com. followed by app name or app developer or something related. Check in that folder.

DJI Mimo - removing title from default templates

Hi guys,
In DJI Mimo app there is assets folder in the apk, where inside it there is DJI-Assets.zip, in which there is a list of templates, where each template has title.mp4.
Unfortunately through the app these titles cannot be disabled. Instead i have created empty video with ffmpeg to replace it.
Now when trying to replace it, application fails to install. I was able to solve it by resigning, but then it failed to open.
Please help, do you know how to resign it so the application will install and start normally?
Thanks.

Sign In with google on modified APK file

Hi every1,
Important threads:
- https://www.thecobraden.com/posts/unblocking_firebase_ids/
Explanation:
I've been messing, for some time now, with android tampering/reverse engineering. But, there is a problem that I can't seem to overcome, neither find any solution for it on any foruns, that is "Signing In with Google" on the app after modifying it (decompiling/recompiling).
The process I follow is as simple as:
Pulling the APK file from my android using adb;
Opening the APK file using jadx-gui to see the contents and search for what I want to change;
Decompiling the APK using APKEasyTool and searching for the .smali file I previously wanted to change;
Changing the file and recompiling the APK with APKEasyTool;
(optional) In case the APK file is splitted, installing it on my device using SAI.
Results:
After this process the app works fine, but as mentioned, I can't no longer sign in on the app with Google. As far as I know, when you click the sign-in button, an HTTP request is made to Google Servers, asking for a token, than can later be used to sign-in on the app (this is made by integrating Firebase in the android project). And, it's in this process that it fails, because on this request it is also sent the SHA-1 fingerprint as a Request Header, which was changed when signing the APK file.
Using a tool like MITMProxy I was able to repeat this request with the APK original SHA-1 (retrieved with keytool -printcert -jarfile <original.apk>), but this requires moving traffic through, for instance, my computer - as a proxy server. (And for some reason it didn't always worked).
Question:
Does anyone have any thoughts on this, or have successfully been able to decompile/recompile an apk and still be able to use Google Sign In option? How can I modify an apk file and still be able to sign in on it with my Google account?
i mean if your device is rooter, you can login in origin apk and use lucky patcher backup data ,install modified apk then do a restore data in to app
Play Services will not allow it unless the apk is signed by Google. The solution is to set the public key for the modified apk and patch Android Framework's signature check to make the system think it's valid.
The yellow smiley face app mentioned above does this, as well as microg.

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