this fixes https://github.com/gorhill/uBlock/issues/763

9 years ago · 9cfc2ff6f8
1 changed files with 4 additions and 1 deletions
--- a/platform/firefox/vapi-background.js
+++ b/platform/firefox/vapi-background.js
@ -2422,7 +2422,10 @@ vAPI.toolbarButton = {
            break;
        }

-        if ( document.getElementById(tbb.id) !== null ) {
+        // https://github.com/gorhill/uBlock/issues/763
+        // We are done if our toolbar button is already installed in one of the
+        // toolbar.
+        if ( palette !== null && toolbarButton.parentElement !== palette ) {
            return;
        }