NoRoot Firewall v100.100.100
APK · 8 MB · version code 100000 · Android 4.4+ · uploaded Dec 11, 2023
- Signed with Android's public test key Details
The source store hasn't rated this file as safe (its rating is Unknown). Prefer a version rated Trusted. See other versions.
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Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v4.0.2, uploaded Jan 7, 2020.
- Size: this file is 8 MB; the latest is 2.6 MB (5.5 MB smaller).
- Android: this version needs Android 4.4+; the latest needs Android 5.0+. Use this one if your device runs an older Android release.
- The latest version asks for 2 more permissions: Run foreground services, Run at startup.
- The latest version no longer asks for: Access adservices attribution, Access adservices topics, View Wi-Fi connections, Internal broadcast protection (app-defined), Advertising ID.
File information
- Version
- v100.100.100 (100000)
- Uploaded
- Dec 11, 2023
- Size
- 8 MB
- Requires
- Android 4.4+ (API 19)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- dbc6114bd1951c152758705ea51c4ce9
- Signing certificate (SHA-1)
- 61:ED:37:7E:85:D3:86:A8:DF:EE:6B:86:4B:D8:5B:0B:FA:A5:AF:81
- Signed by
- [email protected], CN=Android, OU=Android, O=Android, L=Mountain View, ST=California, C=US
- File name
- app-greyshirts-firewall-100000-66613374-dbc6114bd1951c152758705ea51c4ce9.apk
- Package
- app.greyshirts.firewall
- Downloads (all versions)
- 10M+
- Age rating
- PEGI 3 · Everyone
What's new in v100.100.100
- Android 10 support
- Filter import/export
Permissions (7)
This version requests 7 permissions, none of them sensitive.
- Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
- Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
- Advertising ID com.google.android.gms.permission.AD_ID
- Full network access android.permission.INTERNET
- Internal broadcast protection (app-defined) app.greyshirts.firewall.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Unknown
Signing certificate
- Signed with Android's public test key This key is published with Android's source code, so anyone can sign a file with it.
- Signed differently from the Google Play version v3.0.1, which matches Google Play, uses another certificate. Android normally won't update an installed Play Store copy with this file. v3.0.1
Store checks
- Developer signature verified Mar 11, 2025
- Antivirus scan result not available
- Uploaded by “apps” Platinum tier · 3,423,810 followers · uploading since 2010
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself.
How to install NoRoot Firewall on Android 4.4+
You'll need about 16.1 MB of free space.
- Download the APK — tap Download APK above (8 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap app-greyshirts-firewall-100000-66613374-dbc6114bd1951c152758705ea51c4ce9.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be dbc6114bd1951c152758705ea51c4ce9. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. This file has no malware rating from the source store. If Play Protect warns about it, tap Cancel. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open NoRoot Firewall — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 4.4+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.