File 0027-Bug-1822730-Add-basic-blob-protocol-handling-for-blo.patch of Package MozillaFirefox

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Rob Krum <biggestsonicfan@gmail.com>
Date: Fri, 22 Sep 2023 18:23:35 -0700
Subject: [PATCH] Bug 1822730 - Add basic blob protocol handling for blob URIs
 that contain parsable http/s protocols

---
 toolkit/mozapps/downloads/DownloadLastDir.sys.mjs | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/toolkit/mozapps/downloads/DownloadLastDir.sys.mjs b/toolkit/mozapps/downloads/DownloadLastDir.sys.mjs
index 64aef7baaaa69352963f890b58cc71776bae8188..ff09f0a2ff9eca79428a2c548ddeb3d7d90e1ebc 100644
--- a/toolkit/mozapps/downloads/DownloadLastDir.sys.mjs
+++ b/toolkit/mozapps/downloads/DownloadLastDir.sys.mjs
@@ -212,8 +212,8 @@ export class DownloadLastDir {
 
   /**
    * Pre-processor to extract a domain name to be used with the content-prefs
-   * service. This specially handles data and file URIs so that the download
-   * dirs are recalled in a more consistent way:
+   * service. This specially handles data, file and blob URIs so that the
+   * download dirs are recalled in a more consistent way:
    *  - all file:/// URIs share the same folder
    *  - data: URIs share a folder per mime-type. If a mime-type is not
    *    specified text/plain is assumed.
@@ -227,6 +227,9 @@ export class DownloadLastDir {
    */
   #cpsGroupFromURL(url) {
     if (typeof url == "string") {
+      if (url.startsWith("blob:http://") || url.startsWith("blob:https://")) {
+        url = url.replace("blob:", "");
+      }
       url = new URL(url);
     } else if (url instanceof Ci.nsIURI) {
       url = URL.fromURI(url);
@@ -234,6 +237,14 @@ export class DownloadLastDir {
     if (!URL.isInstance(url)) {
       return url;
     }
+    if (url.protocol == "blob:") {
+      if (
+        url.href.startsWith("blob:http://") ||
+        url.href.startsWith("blob:https://")
+      ) {
+        return url.href.replace("blob:", "");
+      }
+    }
     if (url.protocol == "data:") {
       return url.href.match(/^data:[^;,]*/i)[0].replace(/:$/, ":text/plain");
     }