Whatever

 let body = await exportConversationAsHtml(msgs);
 let displayedMsgs = await browser.messageDisplay.getDisplayedMessages(tabId);
 let identityId = undefined;

 if (displayedMsgs.length) {
   let accountId = displayedMsgs[0].folder.accountId;
   let account = await browser.accounts.get(accountId);
   identityId = account.identities[0]?.id;
 }

 await browser.compose.beginNew({
   identityId,
   isPlainText: false,
   body,
 });

 let html = `
Forwarded Conversation:
` + hr;
  
  let promises = msgs.map(msg => exportMsgAsHtml(msg));
  let messagesHtml = await Promise.all(promises);
  
  html += `
` + messagesHtml.join(hr) + `
`;
 return html;

 // Simple fallback to extract text content safely

// Listening for the extension to trigger (e.g., via a custom command or button) async function forwardConversation(tabId, msgs) { let body = await exportConversationAsHtml(msgs); let displayedMsgs = await browser.messageDisplay.getDisplayedMessages(tabId); let identityId = undefined; if (displayedMsgs.length) { let accountId = displayedMsgs[0].folder.accountId; let account = await browser.accounts.get(accountId); identityId = account.identities[0]?.id; } await browser.compose.beginNew({ identityId, isPlainText: false, body, }); } async function exportConversationAsHtml(msgs) { let hr = `<div style="border-top: 1px solid #888; height: 15px; width: 70%; margin: 0 auto; margin-top: 15px">&nbsp;</div>`; let html = `<html><body><p>Forwarded Conversation:</p>` + hr; let promises = msgs.map(msg => exportMsgAsHtml(msg)); let messagesHtml = await Promise.all(promises); html += `<div style="font-family: sans-serif !important;">` + messagesHtml.join(hr) + `</div></body></html>`; return html; } async function exportMsgAsHtml(msg) { // Simple fallback to extract text content safely return `<div><strong>From:</strong> ${msg.author || "Unknown"}<br><strong>Subject:</strong> ${msg.subject}<br><br>${msg.body || ""}</div>`; }