To use or search Firefox Pocket on your phone, first, you need to install the Pocket app, which is available on both the Google Play Store (for Android) and the Apple App Store (for iOS). Once installed, sign in with your Firefox or Pocket account. When you're browsing in Firefox, you can easily save articles by tapping on the heart-shaped Pocket icon in the address bar. This will add the article to your Pocket account. To search for saved content, open the Pocket app, and tap on the search icon (magnifying glass). From there, you can type in keywords or titles to find articles you've saved. Additionally, organizing your saved content with tags makes it easier to search for specific articles later. This way, you can keep all your articles synced across devices and access them anytime.