diff --git a/autofill-parser/CHANGELOG.md b/autofill-parser/CHANGELOG.md
index be3a796d..23e1e105 100644
--- a/autofill-parser/CHANGELOG.md
+++ b/autofill-parser/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 
 ## Unreleased
 
+### Added
+
+- [Mull](https://f-droid.org/packages/us.spotco.fennec_dos/) is now supported as an Autofill-capable browser.
+
 ## [1.1.0]
 
 ### Changed
diff --git a/autofill-parser/src/main/java/com/github/androidpasswordstore/autofillparser/FeatureAndTrustDetection.kt b/autofill-parser/src/main/java/com/github/androidpasswordstore/autofillparser/FeatureAndTrustDetection.kt
index 816491b2..bd84746b 100644
--- a/autofill-parser/src/main/java/com/github/androidpasswordstore/autofillparser/FeatureAndTrustDetection.kt
+++ b/autofill-parser/src/main/java/com/github/androidpasswordstore/autofillparser/FeatureAndTrustDetection.kt
@@ -87,6 +87,7 @@ private val TRUSTED_BROWSER_CERTIFICATE_HASH =
     "org.ungoogled.chromium.extensions.stable" to
       arrayOf("29UOO5cXoxO/e/hH3hOu6bbtg1My4tK6Eik2Ym5Krtk="),
     "com.kiwibrowser.browser" to arrayOf("wGnqlmMy6R4KDDzFd+b1Cf49ndr3AVrQxcXvj9o/hig="),
+    "us.spotco.fennec_dos" to arrayOf("/4H1vlY5ZZTu5w/vKDIlbhUhQSLiupzt0mAF/9S8qqg="),
   )
 
 private fun isTrustedBrowser(context: Context, appPackage: String): Boolean {
@@ -128,6 +129,7 @@ private val BROWSER_MULTI_ORIGIN_METHOD =
     "org.mozilla.focus" to BrowserMultiOriginMethod.Field,
     "org.mozilla.klar" to BrowserMultiOriginMethod.Field,
     "org.torproject.torbrowser" to BrowserMultiOriginMethod.WebView,
+    "us.spotco.fennec_dos" to BrowserMultiOriginMethod.Field,
   )
 
 private fun getBrowserMultiOriginMethod(appPackage: String): BrowserMultiOriginMethod =