Bug 1206709 - [RTL] mispositioned separators between one-off buttons in the searchbar panel, original patch by johngraciliano, r=adw.

browser/base/content/abouthome/aboutHome.css

@@ -75,8 +75,8 @@ a {
   -moz-box-flex: 1;
   padding-top: 6px;
   padding-bottom: 6px;
-  padding-left: 34px;
-  padding-right: 8px;
+  padding-inline-start: 34px;
+  padding-inline-end: 8px;
   background: hsla(0,0%,100%,.9) padding-box;
   border: 1px solid;
   border-radius: 2px 0 0 2px;

browser/base/content/contentSearchUI.css

@@ -14,6 +14,11 @@
   cursor: default;
 }
 
+.contentSearchSuggestionTable:-moz-dir(rtl) {
+  left: auto;
+  right: 0;
+}
+
 .contentSearchSuggestionsList {
   border-bottom: 1px solid hsl(0, 0%, 92%);
   width: 100%;
@@ -38,7 +43,7 @@
 
 .contentSearchHeaderRow > td > img,
 .contentSearchSuggestionRow > td > .historyIcon {
-  margin-right: 8px;
+  margin-inline-end: 8px;
   margin-bottom: -3px;
 }
 
@@ -110,6 +115,10 @@
   background-position: right center;
 }
 
+.contentSearchOneOffItem:-moz-dir(rtl) {
+  background-position: left center;
+}
+
 .contentSearchOneOffItem > img {
   width: 16px;
   height: 16px;

browser/base/content/newtab/newTab.css

@@ -366,8 +366,8 @@ input[type=button] {
   -moz-box-flex: 1;
   padding-top: 6px;
   padding-bottom: 6px;
-  padding-left: 34px;
-  padding-right: 8px;
+  padding-inline-start: 34px;
+  padding-inline-end: 8px;
   background: hsla(0,0%,100%,.9) padding-box;
   border: 1px solid;
   border-spacing: 0;

browser/themes/linux/searchbar.css

@@ -138,6 +138,10 @@ menuitem[cmd="cmd_clearhistory"][disabled] {
   background-position: right center;
 }
 
+.searchbar-engine-one-off-item:-moz-locale-dir(rtl) {
+  background-position: left center;
+}
+
 .searchbar-engine-one-off-item:not(.last-row) {
   box-sizing: content-box;
   border-bottom: 1px solid rgba(0, 0, 0, 0.2);

browser/themes/osx/searchbar.css

@@ -164,6 +164,10 @@
   background-position: right center;
 }
 
+.searchbar-engine-one-off-item:-moz-locale-dir(rtl) {
+  background-position: left center;
+}
+
 .searchbar-engine-one-off-item:not(.last-row) {
   box-sizing: content-box;
   border-bottom: 1px solid #ccc;

browser/themes/windows/searchbar.css

@@ -173,6 +173,10 @@
   background-position: right center;
 }
 
+.searchbar-engine-one-off-item:-moz-locale-dir(rtl) {
+  background-position: left center;
+}
+
 .searchbar-engine-one-off-item:not(.last-row) {
   box-sizing: content-box;
   border-bottom: 1px solid #ccc;