Automatically updates the tab title to match the current chat name or user input.
// ==UserScript==
// @name Gemini Tab Renamer
// @namespace https://github.com/Ergates/GeminiTabRenamer
// @version 1.0
// @description Automatically updates the tab title to match the current chat name or user input.
// @author Ergates
// @match https://gemini.google.com/*
// @grant none
// @run-at document-idle
// @license MIT
// ==/UserScript==
(function() {
'use strict';
// Configuration
const CONFIG = {
checkInterval: 500, // How often to check for title updates (ms)
typingPrefix: "... ", // Prefix shown while user is typing
genericTitle: "Gemini", // The generic title we want to replace
maxTitleLength: 40 // Truncate long input to this length
};
function updateTitle() {
try {
// 1. INPUT TRACKING
// If the user is actively typing, reflect that intent immediately.
const active = document.activeElement;
const isTyping = active && (
active.tagName === 'TEXTAREA' ||
active.getAttribute('contenteditable') === 'true'
);
if (isTyping) {
const text = active.innerText || active.value;
if (text && text.length > 2) {
const cleanText = text.replace(/\n/g, ' ').trim().slice(0, CONFIG.maxTitleLength);
const typingTitle = `${CONFIG.typingPrefix}${cleanText}`;
if (document.title !== typingTitle) {
document.title = typingTitle;
}
return; // Stop here; input takes precedence.
}
}
// 2. CONVERSATION TITLE (Primary Source)
// Look for the main header title visible in the chat window.
// Selector derived from Gemini UI: <span class="conversation-title">
const headerTitle = document.querySelector('span.conversation-title');
if (headerTitle) {
const titleText = headerTitle.textContent.split('\n')[0].trim();
applyTitle(titleText);
return;
}
// 3. SIDEBAR FALLBACK (Secondary Source)
// If the header isn't found (e.g., UI update), try the active sidebar item.
const activeSidebarItem = document.querySelector('nav [aria-current="page"]');
if (activeSidebarItem) {
const sidebarText = activeSidebarItem.textContent.split('\n')[0].trim();
applyTitle(sidebarText);
}
} catch (e) {
// Fail silently to avoid console clutter
}
}
// Helper to safely apply the title
function applyTitle(text) {
if (!text || text.length === 0) return;
// Ignore generic or action-based titles
if (text.includes("Rename") || text.includes("Delete") || text === CONFIG.genericTitle) return;
// Only update if it changed to prevent browser overhead
if (document.title !== text) {
document.title = text;
}
}
// Start the engine
setInterval(updateTitle, CONFIG.checkInterval);
// Optional: Log start
console.log("Gemini Tab Renamer: Active");
})();