diff --git a/browser/branding/aurora/content/icon48.png b/browser/branding/aurora/content/icon48.png
deleted file mode 100644
index 1c4e69b08d20..000000000000
Binary files a/browser/branding/aurora/content/icon48.png and /dev/null differ
diff --git a/browser/branding/aurora/content/jar.mn b/browser/branding/aurora/content/jar.mn
index 9f8c5b36f943..40e013ec50b8 100644
--- a/browser/branding/aurora/content/jar.mn
+++ b/browser/branding/aurora/content/jar.mn
@@ -10,7 +10,7 @@ browser.jar:
   content/branding/about-wordmark.svg
   content/branding/icon16.png                    (../default16.png)
   content/branding/icon32.png                    (../default32.png)
-  content/branding/icon48.png
+  content/branding/icon48.png                    (../default48.png)
   content/branding/icon64.png                    (../default64.png)
   content/branding/icon128.png                   (../default128.png)
   content/branding/identity-icons-brand.svg
diff --git a/browser/branding/nightly/content/icon48.png b/browser/branding/nightly/content/icon48.png
deleted file mode 100644
index bff45494f2f5..000000000000
Binary files a/browser/branding/nightly/content/icon48.png and /dev/null differ
diff --git a/browser/branding/nightly/content/jar.mn b/browser/branding/nightly/content/jar.mn
index 9f8c5b36f943..40e013ec50b8 100644
--- a/browser/branding/nightly/content/jar.mn
+++ b/browser/branding/nightly/content/jar.mn
@@ -10,7 +10,7 @@ browser.jar:
   content/branding/about-wordmark.svg
   content/branding/icon16.png                    (../default16.png)
   content/branding/icon32.png                    (../default32.png)
-  content/branding/icon48.png
+  content/branding/icon48.png                    (../default48.png)
   content/branding/icon64.png                    (../default64.png)
   content/branding/icon128.png                   (../default128.png)
   content/branding/identity-icons-brand.svg
diff --git a/browser/branding/official/content/icon48.png b/browser/branding/official/content/icon48.png
deleted file mode 100644
index d60a51e19c41..000000000000
Binary files a/browser/branding/official/content/icon48.png and /dev/null differ
diff --git a/browser/branding/official/content/jar.mn b/browser/branding/official/content/jar.mn
index 0a6867e22671..9d2f15828cec 100644
--- a/browser/branding/official/content/jar.mn
+++ b/browser/branding/official/content/jar.mn
@@ -10,7 +10,7 @@ browser.jar:
   content/branding/about-wordmark.svg
   content/branding/icon16.png                    (../default16.png)
   content/branding/icon32.png                    (../default32.png)
-  content/branding/icon48.png
+  content/branding/icon48.png                    (../default48.png)
   content/branding/icon64.png                    (../default64.png)
   content/branding/icon128.png                   (../mozicon128.png)
   content/branding/identity-icons-brand.svg
diff --git a/browser/branding/unofficial/content/icon48.png b/browser/branding/unofficial/content/icon48.png
deleted file mode 100644
index 5fc7861e531e..000000000000
Binary files a/browser/branding/unofficial/content/icon48.png and /dev/null differ
diff --git a/browser/branding/unofficial/content/jar.mn b/browser/branding/unofficial/content/jar.mn
index 4d3cfc0fe6d5..ae616d528425 100644
--- a/browser/branding/unofficial/content/jar.mn
+++ b/browser/branding/unofficial/content/jar.mn
@@ -11,7 +11,7 @@ browser.jar:
   content/branding/about-wordmark.svg
   content/branding/icon16.png                    (../default16.png)
   content/branding/icon32.png                    (../default32.png)
-  content/branding/icon48.png
+  content/branding/icon48.png                    (../default48.png)
   content/branding/icon64.png                    (../default64.png)
   content/branding/icon128.png                   (../default128.png)
   content/branding/identity-icons-brand.svg