--- a/browser/themes/linux/browser.css
+++ b/browser/themes/linux/browser.css
@@ -1184,58 +1184,52 @@ richlistitem[type~="action"][actiontype=
   list-style-image: url("chrome://browser/skin/reload-stop-go.png");
 }
 
 #urlbar-reload-button {
   -moz-image-region: rect(0, 14px, 14px, 0);
 }
 
 #urlbar-reload-button:not([disabled]):hover {
-  background-image: radial-gradient(circle closest-side, hsla(200,100%,70%,.2), transparent);
   -moz-image-region: rect(14px, 14px, 28px, 0);
 }
 
 #urlbar-reload-button:not([disabled]):hover:active {
-  background-image: radial-gradient(circle closest-side, hsla(200,100%,60%,.1), transparent);
   -moz-image-region: rect(28px, 14px, 42px, 0);
 }
 
 #urlbar-reload-button:-moz-locale-dir(rtl) > .toolbarbutton-icon {
   transform: scaleX(-1);
 }
 
 #urlbar-go-button {
   -moz-image-region: rect(0, 42px, 14px, 28px);
 }
 
 #urlbar-go-button:hover {
-  background-image: radial-gradient(circle closest-side, hsla(110,70%,50%,.2), transparent);
   -moz-image-region: rect(14px, 42px, 28px, 28px);
 }
 
 #urlbar-go-button:hover:active {
-  background-image: radial-gradient(circle closest-side, hsla(110,70%,50%,.1), transparent);
   -moz-image-region: rect(28px, 42px, 42px, 28px);
 }
 
 #urlbar-go-button:-moz-locale-dir(rtl) > .toolbarbutton-icon {
   transform: scaleX(-1);
 }
 
 #urlbar-stop-button {
   -moz-image-region: rect(0, 28px, 14px, 14px);
 }
 
 #urlbar-stop-button:not([disabled]):hover {
-  background-image: radial-gradient(circle closest-side, hsla(5,100%,75%,.3), transparent);
   -moz-image-region: rect(14px, 28px, 28px, 14px);
 }
 
 #urlbar-stop-button:hover:active {
-  background-image: radial-gradient(circle closest-side, hsla(5,100%,75%,.1), transparent);
   -moz-image-region: rect(28px, 28px, 42px, 14px);
 }
 
 @media (min-resolution: 1.1dppx) {
   #urlbar > toolbarbutton {
     list-style-image: url("chrome://browser/skin/reload-stop-go@2x.png");
   }
 

--- a/browser/themes/osx/browser.css
+++ b/browser/themes/osx/browser.css
@@ -1711,17 +1711,16 @@ toolbarbutton[constrain-size="true"][cui
   padding: 0 3px;
   list-style-image: var(--urlbar-dropmarker-url);
   -moz-image-region: var(--urlbar-dropmarker-region);
 }
 
 .urlbar-history-dropmarker[open="true"],
 .urlbar-history-dropmarker:hover:active {
   -moz-image-region: var(--urlbar-dropmarker-active-region);
-  background-image: radial-gradient(circle closest-side, hsla(205,100%,70%,.3), transparent);
 }
 
 @media (min-resolution: 2dppx) {
   .urlbar-history-dropmarker {
     list-style-image: var(--urlbar-dropmarker-2x-url);
     -moz-image-region: var(--urlbar-dropmarker-2x-region);
   }
 
@@ -1738,21 +1737,16 @@ toolbarbutton[constrain-size="true"][cui
 #urlbar-icons {
   -moz-box-align: center;
 }
 
 .urlbar-icon {
   padding: 0 3px;
 }
 
-.urlbar-icon[open="true"],
-.urlbar-icon:hover:active {
-  background-image: radial-gradient(circle closest-side, hsla(205,100%,70%,.3), transparent);
-}
-
 #urlbar-search-footer {
   border-top: 1px solid hsla(210,4%,10%,.14);
   background-color: hsla(210,4%,10%,.07);
 }
 
 #urlbar-search-settings {
   -moz-appearance: none;
   -moz-user-focus: ignore;
@@ -1915,20 +1909,16 @@ richlistitem[type~="action"][actiontype=
 #urlbar > toolbarbutton {
   margin: 0;
   -moz-padding-start: 2px;
   -moz-padding-end: 1px;
   background-origin: border-box;
   list-style-image: url("chrome://browser/skin/reload-stop-go.png");
 }
 
-#urlbar > toolbarbutton:not([disabled]):hover:active {
-  background-image: radial-gradient(circle closest-side, hsla(205,100%,70%,.3), transparent);
-}
-
 #urlbar-go-button {
   -moz-image-region: rect(0, 42px, 14px, 28px);
 }
 
 #urlbar-go-button:hover:active {
   -moz-image-region: rect(14px, 42px, 28px, 28px);
 }
 

--- a/browser/themes/windows/browser.css
+++ b/browser/themes/windows/browser.css
@@ -1378,25 +1378,16 @@ html|*.urlbar-input:-moz-lwtheme::-moz-p
   padding: 0 3px;
 }
 
 .searchbar-engine-button,
 .search-go-container {
   padding: 2px 2px;
 }
 
-.urlbar-icon:hover {
-  background-image: radial-gradient(circle closest-side, hsla(200,100%,70%,.3), transparent);
-}
-
-.urlbar-icon[open="true"],
-.urlbar-icon:hover:active {
-  background-image: radial-gradient(circle closest-side, hsla(200,100%,70%,.1), transparent);
-}
-
 #urlbar-search-footer {
   border-top: 1px solid hsla(210,4%,10%,.14);
   background-color: hsla(210,4%,10%,.07);
 }
 
 #urlbar-search-settings {
   -moz-appearance: none;
   -moz-user-focus: ignore;
@@ -1473,23 +1464,21 @@ html|*.urlbar-input:-moz-lwtheme::-moz-p
   background-color: transparent;
   border: none;
   width: auto;
   list-style-image: var(--urlbar-dropmarker-url);
   -moz-image-region: var(--urlbar-dropmarker-region);
 }
 
 .urlbar-history-dropmarker:hover {
-  background-image: radial-gradient(circle closest-side, hsla(205,100%,70%,.3), transparent);
   -moz-image-region: var(--urlbar-dropmarker-hover-region);
 }
 
 .urlbar-history-dropmarker:hover:active,
 .urlbar-history-dropmarker[open="true"] {
-  background-image: radial-gradient(circle closest-side, hsla(205,100%,70%,.1), transparent);
   -moz-image-region: var(--urlbar-dropmarker-active-region);
 }
 
 @media (min-resolution: 1.1dppx) {
   .urlbar-history-dropmarker {
     list-style-image: var(--urlbar-dropmarker-2x-url);
     -moz-image-region: var(--urlbar-dropmarker-2x-region);
   }
@@ -1664,58 +1653,52 @@ richlistitem[type~="action"][actiontype=
   list-style-image: url("chrome://browser/skin/reload-stop-go.png");
 }
 
 #urlbar-reload-button {
   -moz-image-region: rect(0, 14px, 14px, 0);
 }
 
 #urlbar-reload-button:not([disabled]):hover {
-  background-image: radial-gradient(circle closest-side, hsla(200,100%,70%,.2), transparent);
   -moz-image-region: rect(14px, 14px, 28px, 0);
 }
 
 #urlbar-reload-button:not([disabled]):hover:active {
-  background-image: radial-gradient(circle closest-side, hsla(200,100%,60%,.1), transparent);
   -moz-image-region: rect(28px, 14px, 42px, 0);
 }
 
 #urlbar-reload-button:-moz-locale-dir(rtl) > .toolbarbutton-icon {
   transform: scaleX(-1);
 }
 
 #urlbar-go-button {
   -moz-image-region: rect(0, 42px, 14px, 28px);
 }
 
 #urlbar-go-button:hover {
-  background-image: radial-gradient(circle closest-side, hsla(110,70%,50%,.2), transparent);
   -moz-image-region: rect(14px, 42px, 28px, 28px);
 }
 
 #urlbar-go-button:hover:active {
-  background-image: radial-gradient(circle closest-side, hsla(110,70%,50%,.1), transparent);
   -moz-image-region: rect(28px, 42px, 42px, 28px);
 }
 
 #urlbar-go-button:-moz-locale-dir(rtl) > .toolbarbutton-icon {
   transform: scaleX(-1);
 }
 
 #urlbar-stop-button {
   -moz-image-region: rect(0, 28px, 14px, 14px);
 }
 
 #urlbar-stop-button:not([disabled]):hover {
-  background-image: radial-gradient(circle closest-side, hsla(5,100%,75%,.3), transparent);
   -moz-image-region: rect(14px, 28px, 28px, 14px);
 }
 
 #urlbar-stop-button:hover:active {
-  background-image: radial-gradient(circle closest-side, hsla(5,100%,75%,.1), transparent);
   -moz-image-region: rect(28px, 28px, 42px, 14px);
 }
 
 @media (min-resolution: 1.1dppx) {
   #urlbar > toolbarbutton {
     list-style-image: url("chrome://browser/skin/reload-stop-go@2x.png");
   }