Update firefox-certificates.md

docs/adguard-for-android/solving-problems/firefox-certificates.md

@@ -5,7 +5,7 @@ sidebar_position: 11
 
 :::info
 
-This article covers AdGuard for Android, a multifunctional ad blocker that protects your device at the system level. To see how it works, [download the AdGuard app](https://adguard.com/download.html?auto=true)
+This article covers AdGuard for Android, a multifunctional ad blocker that protects your device at the system level. To see how it works, [download the AdGuard app](https://adguard.com/download.html?auto=true).
 
 :::
 
@@ -49,7 +49,7 @@ On the Windows platform, **Samsung** owners may need to install [this utility](h
     - Tap the **Build number** line 7 times. After that, you will receive a notification that **You are now a developer** (If necessary, enter an unlock code for the device);
     - Open **System Settings** → **Developer Options** → Scroll down and enable **USB debugging** → Confirm debugging is enabled in the window **Allow USB debugging** after reading the warning carefully.
 3. Install the [Firefox](https://www.mozilla.org/en-US/firefox/releases/) browser (release version);
-4. Open the **AdGuard settings** → **Network** → **HTTPS Filtering** → Install the certificate in **Firefox** → **INSTALL FOR OLD VERSIONS**;
+4. Open the **AdGuard settings** (gear icon in the bottom right corner) → **Filtering** → **Network** → **HTTPS filtering** → **Security certificate** → **Instructions for Firefox** → **INSTALL FOR OLD VERSIONS**;
 5. Open the folder `data/data/org.mozilla.firefox/files/mozilla` using `adb shell su` and `cd data/data/...`, then browse to the folder named `xxxxxxx.default` and memorize its name;
 6. In the specified folder we are interested in two files:
     - `cert9.db`