--- a/devtools/client/webconsole/test/browser/browser_webconsole_certificate_messages.js
+++ b/devtools/client/webconsole/test/browser/browser_webconsole_certificate_messages.js
@@ -12,19 +12,18 @@ const TEST_URI_PATH =
   "browser/test-certificate-messages.html";
 
 const SHA1_URL = "https://sha1ee.example.com" + TEST_URI_PATH;
 const SHA256_URL = "https://sha256ee.example.com" + TEST_URI_PATH;
 const TRIGGER_MSG = "If you haven't seen ssl warnings yet, you won't";
 const TLS_1_0_URL = "https://tls1.example.com" + TEST_URI_PATH;
 
 const TLS_expected_message =
-  "This site uses a deprecated version of TLS that" +
-  " will be disabled in March 2020. Please upgrade" +
-  " to TLS 1.2 or 1.3.";
+  "This site uses a deprecated version of TLS. " +
+  "Please upgrade to TLS 1.2 or 1.3.";
 
 registerCleanupFunction(function() {
   // Set preferences back to their original values
   Services.prefs.clearUserPref("security.tls.version.min");
   Services.prefs.clearUserPref("security.tls.version.max");
 });
 
 add_task(async function() {

--- a/dom/locales/en-US/chrome/security/security.properties
+++ b/dom/locales/en-US/chrome/security/security.properties
@@ -62,17 +62,17 @@ IneligibleResource=“%1$S” is not eligible for integrity checks since it’s neither CORS-enabled nor same-origin.
 # LOCALIZATION NOTE: Do not translate "integrity". "%1$S" is the invalid hash algorithm found in the attribute.
 UnsupportedHashAlg=Unsupported hash algorithm in the integrity attribute: “%1$S”
 # LOCALIZATION NOTE: Do not translate "integrity"
 NoValidMetadata=The integrity attribute does not contain any valid metadata.
 
 # LOCALIZATION NOTE: Do not translate "RC4".
 WeakCipherSuiteWarning=This site uses the cipher RC4 for encryption, which is deprecated and insecure.
 
-DeprecatedTLSVersion=This site uses a deprecated version of TLS that will be disabled in March 2020. Please upgrade to TLS 1.2 or 1.3.
+DeprecatedTLSVersion2=This site uses a deprecated version of TLS. Please upgrade to TLS 1.2 or 1.3.
 
 #XCTO: nosniff
 # LOCALIZATION NOTE: Do not translate "X-Content-Type-Options: nosniff".
 MimeTypeMismatch2=The resource from “%1$S” was blocked due to MIME type (“%2$S”) mismatch (X-Content-Type-Options: nosniff).
 # LOCALIZATION NOTE: Do not translate "X-Content-Type-Options" and also do not translate "nosniff".
 XCTOHeaderValueMissing=X-Content-Type-Options header warning: value was “%1$S”; did you mean to send “nosniff”?
 # LOCALIZATION NOTE: Do not translate "X-Content-Type-Options" and also do not translate "nosniff".
 XTCOWithMIMEValueMissing=The resource from “%1$S” was not rendered due to an unknown, incorrect or missing MIME type (X-Content-Type-Options: nosniff).

--- a/netwerk/protocol/http/nsHttpChannel.cpp
+++ b/netwerk/protocol/http/nsHttpChannel.cpp
@@ -2373,17 +2373,17 @@ void nsHttpChannel::ProcessSSLInformatio
     }
   }
 
   uint16_t tlsVersion;
   nsresult rv = securityInfo->GetProtocolVersion(&tlsVersion);
   if (NS_SUCCEEDED(rv) &&
       tlsVersion != nsITransportSecurityInfo::TLS_VERSION_1_2 &&
       tlsVersion != nsITransportSecurityInfo::TLS_VERSION_1_3) {
-    nsString consoleErrorTag = NS_LITERAL_STRING("DeprecatedTLSVersion");
+    nsString consoleErrorTag = NS_LITERAL_STRING("DeprecatedTLSVersion2");
     nsString consoleErrorCategory = NS_LITERAL_STRING("TLS");
     Unused << AddSecurityMessage(consoleErrorTag, consoleErrorCategory);
   }
 }
 
 void nsHttpChannel::ProcessAltService() {
   // e.g. Alt-Svc: h2=":443"; ma=60
   // e.g. Alt-Svc: h2="otherhost:443"