diff --git a/fdroidserver/scanner.py b/fdroidserver/scanner.py
index cad0026b..3886d0f8 100644
--- a/fdroidserver/scanner.py
+++ b/fdroidserver/scanner.py
@@ -69,9 +69,18 @@ def scan_source(build_dir, build):
         ]
     }
 
+    whitelisted = [
+        'firebase-jobdispatcher',  # https://github.com/firebase/firebase-jobdispatcher-android/blob/master/LICENSE
+        'com.firebaseui',          # https://github.com/firebase/FirebaseUI-Android/blob/master/LICENSE
+        'geofire-android'          # https://github.com/firebase/geofire-java/blob/master/LICENSE
+    ]
+
+    def is_whitelisted(s):
+        return any(wl in s for wl in whitelisted)
+
     def suspects_found(s):
         for n, r in usual_suspects.items():
-            if r.match(s):
+            if r.match(s) and not is_whitelisted(s):
                 yield n
 
     gradle_mavenrepo = re.compile(r'maven *{ *(url)? *[\'"]?([^ \'"]*)[\'"]?')
@@ -198,7 +207,7 @@ def scan_source(build_dir, build):
 
             elif ext == 'jar':
                 for name in suspects_found(curfile):
-                    count += handleproblem('usual supect \'%s\'' % name, path_in_build_dir, filepath)
+                    count += handleproblem('usual suspect \'%s\'' % name, path_in_build_dir, filepath)
                 if curfile == 'gradle-wrapper.jar':
                     removeproblem('gradle-wrapper.jar', path_in_build_dir, filepath)
                 else:
@@ -224,7 +233,7 @@ def scan_source(build_dir, build):
                 for i, line in enumerate(lines):
                     if is_used_by_gradle(line):
                         for name in suspects_found(line):
-                            count += handleproblem('usual supect \'%s\' at line %d' % (name, i + 1), path_in_build_dir, filepath)
+                            count += handleproblem('usual suspect \'%s\' at line %d' % (name, i + 1), path_in_build_dir, filepath)
                 noncomment_lines = [l for l in lines if not common.gradle_comment.match(l)]
                 joined = re.sub(r'[\n\r\s]+', ' ', ' '.join(noncomment_lines))
                 for m in gradle_mavenrepo.finditer(joined):
diff --git a/tests/scanner.TestCase b/tests/scanner.TestCase
new file mode 100755
index 00000000..874d1ad4
--- /dev/null
+++ b/tests/scanner.TestCase
@@ -0,0 +1,33 @@
+#!/usr/bin/env python3
+
+import unittest
+import optparse
+from pathlib import Path
+from os.path import basename, dirname, realpath
+
+from fdroidserver import scanner
+from fdroidserver.metadata import Build
+import fdroidserver.common
+
+
+class ScannerTest(unittest.TestCase):
+    def test_scan_source_files(self):
+        source_files = Path(dirname(realpath(__file__)), 'source-files')
+        projects = {
+            'Zillode': 1,
+            'firebase-suspect': 1
+        }
+        for d in (str(p) for p in source_files.iterdir()):
+            fatal_problems = scanner.scan_source(d, Build())
+            self.assertEqual(projects.get(basename(d), 0), fatal_problems)
+
+
+if __name__ == "__main__":
+    parser = optparse.OptionParser()
+    parser.add_option("-v", "--verbose", action="store_true", default=False,
+                      help="Spew out even more information than normal")
+    (fdroidserver.common.options, args) = parser.parse_args(['--verbose'])
+
+    newSuite = unittest.TestSuite()
+    newSuite.addTest(unittest.makeSuite(ScannerTest))
+    unittest.main(failfast=False)
diff --git a/tests/source-files/firebase-suspect/app/build.gradle b/tests/source-files/firebase-suspect/app/build.gradle
new file mode 100644
index 00000000..440d75a6
--- /dev/null
+++ b/tests/source-files/firebase-suspect/app/build.gradle
@@ -0,0 +1,5 @@
+dependencies {
+    compile 'com.google.firebase:firebase-core:11.6.2'
+
+    testCompile 'junit:junit:4.12'
+}
diff --git a/tests/source-files/firebase-suspect/build.gradle b/tests/source-files/firebase-suspect/build.gradle
new file mode 100644
index 00000000..47295bbb
--- /dev/null
+++ b/tests/source-files/firebase-suspect/build.gradle
@@ -0,0 +1,11 @@
+buildscript {
+    dependencies {
+        classpath 'com.android.tools.build:gradle:2.3.3'
+    }
+}
+
+allprojects {
+    repositories {
+        maven { url "https://maven.google.com" }
+    }
+}
diff --git a/tests/source-files/firebase-whitelisted/app/build.gradle b/tests/source-files/firebase-whitelisted/app/build.gradle
new file mode 100644
index 00000000..e97e2316
--- /dev/null
+++ b/tests/source-files/firebase-whitelisted/app/build.gradle
@@ -0,0 +1,5 @@
+dependencies {
+    compile 'com.firebase:firebase-jobdispatcher:0.8.4'
+
+    testCompile 'junit:junit:4.12'
+}
diff --git a/tests/source-files/firebase-whitelisted/build.gradle b/tests/source-files/firebase-whitelisted/build.gradle
new file mode 100644
index 00000000..e52ed0ac
--- /dev/null
+++ b/tests/source-files/firebase-whitelisted/build.gradle
@@ -0,0 +1,14 @@
+buildscript {
+    repositories {
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:2.3.3'
+    }
+}
+
+allprojects {
+    repositories {
+        jcenter()
+    }
+}