diff -ur ssleuth-0.5.3-fx/content/preferences.xul ssleuth-0.5.4-fx.xpi/content/preferences.xul
--- ssleuth-0.5.3-fx/content/preferences.xul	2016-12-04 03:41:26.000000000 -0500
+++ ssleuth-0.5.4-fx.xpi/content/preferences.xul	2018-07-11 21:48:44.000000000 -0400
@@ -343,7 +343,7 @@
 										active="true">
 				<vbox class="ssleuth-pref-view-container">
 					<groupbox>
-						<caption label="SSleuth v0.5.3"/>
+						<caption label="SSleuth v0.5.4"/>
 						<description value="&ssleuth.pref.about.author; Sibi Antony"/>
 						<description class="ssleuth-pref-text" >
 								Your feedback and development/translation support are welcome.
diff -ur ssleuth-0.5.3-fx/install.rdf ssleuth-0.5.4-fx.xpi/install.rdf
--- ssleuth-0.5.3-fx/install.rdf	2016-12-04 03:41:13.000000000 -0500
+++ ssleuth-0.5.4-fx.xpi/install.rdf	2018-07-11 21:46:37.000000000 -0400
@@ -6,7 +6,7 @@
             <homepageURL>https://github.com/sibiantony/ssleuth/</homepageURL>
             <id>ssleuth@github</id>
             <name>SSleuth</name>
-            <version>0.5.3</version>
+            <version>0.5.4</version>
             <iconURL>chrome://ssleuth/skin/ssleuth-icon.png</iconURL>
             <optionsURL>chrome://ssleuth/content/preferences.xul</optionsURL>
             <optionsType>3</optionsType>
@@ -18,8 +18,16 @@
             <targetApplication>
                 <r:Description>
                     <id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</id>
-                    <minVersion>42.0</minVersion>
-                    <maxVersion>51.0a1</maxVersion>
+                    <minVersion>52.0</minVersion>
+                    <maxVersion>52.*</maxVersion>
+                </r:Description>
+            </targetApplication>
+	    
+            <targetApplication>
+                <r:Description>
+                    <id>{8de7fcbb-c55c-4fbe-bfc5-fc555c87dbc4}</id>
+                    <minVersion>28.0</minVersion>
+                    <maxVersion>28.*</maxVersion>
                 </r:Description>
             </targetApplication>
 
Only in ssleuth-0.5.3-fx: META-INF
diff -ur ssleuth-0.5.3-fx/modules/cipher-suites.js ssleuth-0.5.4-fx.xpi/modules/cipher-suites.js
--- ssleuth-0.5.3-fx/modules/cipher-suites.js	2016-12-04 03:36:41.000000000 -0500
+++ ssleuth-0.5.4-fx.xpi/modules/cipher-suites.js	2018-07-11 15:07:28.000000000 -0400
@@ -346,7 +346,7 @@
             'rsa_rc4_128_md5',
             'rsa_rc4_128_sha'
         ],
-        state: 'default'
+        state: 'disable'
     },
     {
         name: 'Non PFS, non RC4 suites',
@@ -394,9 +394,5 @@
     ff_cache: {
         ui: '<Firefox cache. Reload page>',
         state: 'okay'
-    },
-    ff_29plus: {
-        ui: '<Requires Firefox 29+ >',
-        state: 'med'
     }
 }
\ No newline at end of file
diff -ur ssleuth-0.5.3-fx/modules/ssleuth.js ssleuth-0.5.4-fx.xpi/modules/ssleuth.js
--- ssleuth-0.5.3-fx/modules/ssleuth.js	2016-10-25 16:40:48.000000000 -0400
+++ ssleuth-0.5.4-fx.xpi/modules/ssleuth.js	2018-07-11 15:00:52.000000000 -0400
@@ -103,7 +103,7 @@
                     .QueryInterface(Ci.nsISSLStatusProvider)
                     .SSLStatus.QueryInterface(Ci.nsISSLStatus);
                 if (sslStatus) {
-                    hostEntry.cipherName = sslStatus.cipherName;
+                    hostEntry.cipherName = sslStatus.cipherSuite;
                     hostEntry.certValid = isCertValid(sslStatus.serverCert);
                     hostEntry.domMatch = !sslStatus.isDomainMismatch;
                     hostEntry.csRating = getCipherSuiteRating(hostEntry.cipherName);
@@ -322,7 +322,7 @@
 
         const cs = ciphersuites;
         var securityState = '',
-            cipherName = sslStatus.cipherName,
+            cipherName = sslStatus.cipherSuite,
             extendedValidation = false;
 
         // Security Info - Firefox states
@@ -456,17 +456,12 @@
         var index = '';
         var versionStrings = ['sslv3', 'tlsv1_0', 'tlsv1_1', 'tlsv1_2', 'tlsv1_3'];
 
-        // TODO : At the moment, depends on observer module. Change.
-        if (Services.vc.compare(Services.appinfo.platformVersion, '36.0') > -1) {
-            var secUI = win.gBrowser.securityUI;
+        var secUI = win.gBrowser.securityUI;
             if (secUI) {
                 var sslStatus = secUI.SSLStatus;
                 if (sslStatus)
                     index = versionStrings[sslStatus.protocolVersion & 0xFF];
             }
-        } else if (Services.vc.compare(Services.appinfo.platformVersion, '29.0') < 0) {
-            index = 'ff_29plus';
-        }
         if (index !== '') {
             observer.updateLocEntry(winId, {
                 tlsVersion: index,