backport: bitcoin-core#gui18, #121, #257, #263, #281, #335, #362, #828, bitcoin#21912, #21942, #21988

src/qt/governancelist.cpp

@@ -387,8 +387,11 @@ void GovernanceList::showProposalContextMenu(const QPoint& pos)
         return;
     }
 
+    QString proposal_url = proposal->url();
+    proposal_url.replace(QChar('&'), QString("&&"));
+
     // right click menu with option to open proposal url
-    QAction* openProposalUrl = new QAction(proposal->url(), this);
+    QAction* openProposalUrl = new QAction(proposal_url, this);
     proposalContextMenu->clear();
     proposalContextMenu->addAction(openProposalUrl);
     connect(openProposalUrl, &QAction::triggered, proposal, &Proposal::openUrl);