Bug 1877195: Expand mixed-content download protection to all http downloads, r=freddyb,Gijs,anti-tracking-reviewers,pbz

Differential Revision: https://phabricator.services.mozilla.com/D200267

browser/components/downloads/DownloadsCommon.sys.mjs

@@ -696,7 +696,7 @@ export var DownloadsCommon = {
         message = s.unblockTypePotentiallyUnwanted2;
         break;
       case lazy.Downloads.Error.BLOCK_VERDICT_INSECURE:
-        message = s.unblockInsecure2;
+        message = s.unblockInsecure3;
         break;
       default:
         // Assume Downloads.Error.BLOCK_VERDICT_MALWARE

browser/components/downloads/DownloadsViewUI.sys.mjs

@@ -888,7 +888,7 @@ DownloadsViewUI.DownloadElementShell.prototype = {
       case lazy.Downloads.Error.BLOCK_VERDICT_INSECURE:
         return [
           s.blockedPotentiallyInsecure,
-          [s.unblockInsecure2, s.unblockTip2],
+          [s.unblockInsecure3, s.unblockTip2],
         ];
       case lazy.Downloads.Error.BLOCK_VERDICT_POTENTIALLY_UNWANTED:
         return [

browser/components/downloads/test/browser/browser_download_overwrite.js

@@ -5,7 +5,7 @@
 
 const TEST_ROOT = getRootDirectory(gTestPath).replace(
   "chrome://mochitests/content",
-  "http://example.com"
+  "https://example.com"
 );
 
 var MockFilePicker = SpecialPowers.MockFilePicker;