diff --git a/README.md b/README.md
index 7cbe264..33fa4ab 100644
--- a/README.md
+++ b/README.md
@@ -86,6 +86,7 @@ array(
 	- BlackBerry
 	- Playbook
 	- Tizen
+	- Sailfish OS
 - Console
 	- Oculus
 	- Nintendo 3DS
@@ -116,6 +117,8 @@ array(
 - TizenBrowser
 - OculusBrowser
 - SamsungBrowser
+- Sailfish Browser
+- Miui Browser
 - UC Browser
 - Lynx
 - Wget
diff --git a/src/UserAgentParser.php b/src/UserAgentParser.php
index 3617053..bf2649b 100644
--- a/src/UserAgentParser.php
+++ b/src/UserAgentParser.php
@@ -34,11 +34,11 @@ function parse_user_agent( $u_agent = null ) {
 	}
 
 	if( preg_match('/\((.*?)\)/m', $u_agent, $parent_matches) ) {
-		preg_match_all('/(?P<platform>BB\d+;|Android|Adr|Symbian|CrOS|Tizen|iPhone|iPad|iPod|Linux|(Open|Net|Free)BSD|Macintosh|Windows(\ Phone)?|Silk|linux-gnu|BlackBerry|PlayBook|X11|(New\ )?Nintendo\ (WiiU?|3?DS|Switch)|Xbox(\ One)?)
+		preg_match_all('/(?P<platform>BB\d+;|Android|Adr|Symbian|Sailfish|CrOS|Tizen|iPhone|iPad|iPod|Linux|(Open|Net|Free)BSD|Macintosh|Windows(\ Phone)?|Silk|linux-gnu|BlackBerry|PlayBook|X11|(New\ )?Nintendo\ (WiiU?|3?DS|Switch)|Xbox(\ One)?)
 				(?:\ [^;]*)?
 				(?:;|$)/imx', $parent_matches[1], $result);
 
-		$priority = array( 'Xbox One', 'Xbox', 'Windows Phone', 'Tizen', 'Android', 'FreeBSD', 'NetBSD', 'OpenBSD', 'CrOS', 'X11' );
+		$priority = array( 'Xbox One', 'Xbox', 'Windows Phone', 'Tizen', 'Android', 'FreeBSD', 'NetBSD', 'OpenBSD', 'CrOS', 'X11', 'Sailfish' );
 
 		$result['platform'] = array_unique($result['platform']);
 		if( count($result['platform']) > 1 ) {
@@ -61,7 +61,8 @@ function parse_user_agent( $u_agent = null ) {
 	}
 
 	preg_match_all('%(?P<browser>Camino|Kindle(\ Fire)?|Firefox|Iceweasel|IceCat|Safari|MSIE|Trident|AppleWebKit|
-				TizenBrowser|(?:Headless)?Chrome|YaBrowser|Vivaldi|IEMobile|Opera|OPR|Silk|Midori|Edge|Edg|CriOS|UCBrowser|Puffin|OculusBrowser|SamsungBrowser|
+				TizenBrowser|(?:Headless)?Chrome|YaBrowser|Vivaldi|IEMobile|Opera|OPR|Silk|Midori|Edge|Edg|CriOS|UCBrowser|Puffin|
+				OculusBrowser|SamsungBrowser|SailfishBrowser|XiaoMi/MiuiBrowser|
 				Baiduspider|Applebot|Googlebot|YandexBot|bingbot|Lynx|Version|Wget|curl|
 				Valve\ Steam\ Tenfoot|
 				NintendoBrowser|PLAYSTATION\ (\d|Vita)+)
@@ -116,7 +117,7 @@ function parse_user_agent( $u_agent = null ) {
 
 	$key = 0;
 	$val = '';
-	if( $findT(array( 'OPR' => 'Opera', 'UCBrowser' => 'UC Browser', 'YaBrowser' => 'Yandex', 'Iceweasel' => 'Firefox', 'Icecat' => 'Firefox', 'CriOS' => 'Chrome', 'Edg' => 'Edge' ), $key, $browser) ) {
+	if( $findT(array( 'OPR' => 'Opera', 'UCBrowser' => 'UC Browser', 'YaBrowser' => 'Yandex', 'Iceweasel' => 'Firefox', 'Icecat' => 'Firefox', 'CriOS' => 'Chrome', 'Edg' => 'Edge', 'XiaoMi/MiuiBrowser' => 'MiuiBrowser' ), $key, $browser) ) {
 		$version = $result['version'][$key];
 	}elseif( $find('Playstation Vita', $key, $platform) ) {
 		$platform = 'PlayStation Vita';
@@ -149,7 +150,7 @@ function parse_user_agent( $u_agent = null ) {
 				}
 			}
 		}
-	} elseif( $find(array( 'Applebot', 'IEMobile', 'Edge', 'Midori', 'Vivaldi', 'OculusBrowser', 'SamsungBrowser', 'Valve Steam Tenfoot', 'Chrome', 'HeadlessChrome' ), $key, $browser) ) {
+	} elseif( $find(array( 'Applebot', 'IEMobile', 'Edge', 'Midori', 'Vivaldi', 'OculusBrowser', 'SamsungBrowser', 'Valve Steam Tenfoot', 'Chrome', 'HeadlessChrome', 'SailfishBrowser' ), $key, $browser) ) {
 		$version = $result['version'][$key];
 	} elseif( $rv_result && $find('Trident') ) {
 		$browser = 'MSIE';
diff --git a/tests/UserAgentParserTest.php b/tests/UserAgentParserTest.php
index 6d02d46..4082ef2 100644
--- a/tests/UserAgentParserTest.php
+++ b/tests/UserAgentParserTest.php
@@ -47,6 +47,7 @@ public function test_no_user_agent_exception() {
 		try {
 			parse_user_agent();
 		} catch(\InvalidArgumentException $ex) {
+			$this->assertTrue(true); // quiet warning
 			return;
 		}
 
diff --git a/tests/user_agents.json b/tests/user_agents.json
index 1463bec..723f8c6 100644
--- a/tests/user_agents.json
+++ b/tests/user_agents.json
@@ -519,6 +519,21 @@
 		"browser": "Chrome",
 		"version": "18.0.1025.308"
 	},
+	"Mozilla\/5.0 (Linux; U; Android 8.1.0; en-gb; Redmi Note 5 Build\/OPM1.171019.011)\nAppleWebKit\/537.36 (KHTML, like Gecko) Version\/4.0 Chrome\/61.0.3163.128 Mobile\nSafari\/537.36 XiaoMi\/MiuiBrowser\/10.1.2": {
+		"platform": "Android",
+		"browser": "MiuiBrowser",
+		"version": "10.1.2"
+	},
+	"Mozilla\/5.0 (Linux; U; Android 10; bg-bg; Mi Note 10 Build\/QKQ1.190825.002) AppleWebKit\/537.36 (KHTML, like Gecko) Version\/4.0 Chrome\/71.0.3578.141 Mobile Safari\/537.36 XiaoMi\/MiuiBrowser\/12.6.2-gn": {
+		"platform": "Android",
+		"browser": "MiuiBrowser",
+		"version": "12.6.2"
+	},
+	"Mozilla\/5.0 (Linux; U; Android 10; ru-ru; Redmi Note 7 Build\/QKQ1.190910.002) AppleWebKit\/537.36 (KHTML, like Gecko) Version\/4.0 Chrome\/71.0.3578.141 Mobile Safari\/537.36 XiaoMi\/MiuiBrowser\/12.6.6-gn": {
+		"platform": "Android",
+		"browser": "MiuiBrowser",
+		"version": "12.6.6"
+	},
 	"Mozilla\/5.0 (Linux; Android 7.1.2; Pacific Build\/N2G48H) AppleWebKit\/537.36 (KHTML, like Gecko) OculusBrowser\/5.5.10.137831012 SamsungBrowser\/4.0 Chrome\/66.0.3359.203 Mobile VR Safari\/537.36": {
 		"platform": "Android",
 		"browser": "OculusBrowser",
@@ -914,6 +929,26 @@
 		"browser": "Browser",
 		"version": "1.69"
 	},
+	"Mozilla\/5.0 (Linux; U; Sailfish 3.0; Mobile; rv:38.0) Gecko\/38.0 Firefox\/38.0 SailfishBrowser\/1.0": {
+		"platform": "Sailfish",
+		"browser": "SailfishBrowser",
+		"version": "1.0"
+	},
+	"Mozilla\/5.0 (Linux; U; Sailfish 3.0; Tablet; rv:38.0) Gecko\/38.0 Firefox\/38.0 SailfishBrowser\/1.0": {
+		"platform": "Sailfish",
+		"browser": "SailfishBrowser",
+		"version": "1.0"
+	},
+	"Mozilla\/5.0 (Maemo; Linux; U; Jolla; Sailfish; Mobile; rv:31.0) Gecko\/31.0 Firefox\/31.0 SailfishBrowser\/1.0": {
+		"platform": "Sailfish",
+		"browser": "SailfishBrowser",
+		"version": "1.0"
+	},
+	"Mozilla\/5.0 (Maemo; Linux; U; Jolla; Sailfish; Tablet; rv:31.0) Gecko\/31.0 Firefox\/31.0 SailfishBrowser\/1.0": {
+		"platform": "Sailfish",
+		"browser": "SailfishBrowser",
+		"version": "1.0"
+	},
 	"UCWEB\/2.0 (Symbian; U; S60 V5; id; NokiaN8-00) U2\/1.0.0 UCBrowser\/9.2.0.336 U2\/1.0.0 Mobile": {
 		"platform": "Symbian",
 		"browser": "UC Browser",