Gemini Enter Key Control (by marusin)

Tracking since Apr 1, 2026.

Changelog

• May 28, 2026
  description

  Gemini Enter Key Control helps prevent accidental sends when typing long prompts or messages in Gemini and NotebookLM chats.
  It supports the standard Gemini chat page and the NotebookLM chat input, and lets you choose the send key setting that works best for you.
  
  ■ Features
  - Press Enter to insert a line break
  - Send with Shift+Enter or Ctrl+Enter
  - Supports multiple send modes (Shift / Ctrl / Both / Shift+Ctrl)
  - Supports the standard Gemini chat page and the NotebookLM chat input
  - Multilingual UI support (English, Chinese, Japanese, Korean)
  
  ■ Benefits
  - Helps prevent accidental sends
  - Makes it easier to write long prompts and messages
  - Reduces stress while typing
  - Lets you choose the send method that works best for you
  
  ■ Simple and safe
  - Lightweight and fast
  - No data collection
  - No external communication
  
  ■ Supported scope
  - Works only on supported chat fields in the web versions of Gemini and NotebookLM
  - Supported sites are https://gemini.google.com/ and https://notebooklm.google.com/
  - NotebookLM source search fields are not supported
  - Gemini in Chrome shown in the Chrome side panel is not supported
  
  ■ How to use
  - After installation, click the extension icon in the toolbar to enable or disable the extension and choose your preferred send key.
  - If Gemini or NotebookLM is already open during installation, reload the page or click the extension icon once to open the popup.
  
  ■ Release Notes
  Version 1.2.0
  - Added support for the NotebookLM chat input
  - NotebookLM source search fields are not supported
  - Existing behavior on standard Gemini chat is preserved
  
  Developed by marusin

  Have you ever felt frustrated by accidentally sending a message in Gemini or NotebookLM when you just wanted to start a new line?
  
  "Gemini Enter Key Control" is a Chrome extension that allows you to use the 'Enter' key to create a new line, just like your usual text editors. It completely prevents accidental submissions caused by pressing Enter, providing stress-free support for crafting long prompts and organizing your thoughts!
  
  ⚠️ [IMPORTANT] Installation Note
  If you already have a Gemini or NotebookLM tab open, please reload (refresh) the page for the extension to take effect.
  
  💡 Key Features
  - Use the Enter key for line breaks (feels just like standard text input!)
  - Multiple send shortcut options to choose from (Shift+Enter / Ctrl+Enter / Mac Cmd+Enter, etc.)
  - Fully compatible with the standard Gemini chat and NotebookLM chat input
  - Multi-language UI support (Japanese, English, Chinese, Korean)
  
  ✨ Benefits & Ease of Use
  - Set your preferred keys in just 2 clicks
  - Say goodbye to the stress of retyping due to accidental sends
  - Makes creating complex and detailed prompts overwhelmingly smooth
  
  🔒 Simple, Fast & Secure
  - Lightweight with high-speed response
  - 100% Private: No input data is collected or sent externally
  
  🌐 Compatibility
  - Fully compatible with the official web versions:
    https://gemini.google.com/
    https://notebooklm.google.com/
  *(Note: Currently not applicable to the Chrome Side Panel (Gemini in Chrome) or NotebookLM's source search field)*
  
  ⚙️ How to Use
  1. After installation, reload (refresh) any already open Gemini or NotebookLM tabs.
  2. Click the extension icon in the Chrome toolbar.
  3. Simply toggle enable/disable or choose your preferred send key!
  
  💖 A Request from the Developer
  If you find this extension even a little bit helpful, please leave a rating or review in the store! (Star ratings can be done anonymously)
  Your support is a huge encouragement for future updates!
  
  📋 Release Notes
  Version 1.2.1
  - Added support for Command (Cmd) key submission for Mac users!
  - Fixed a bug where messages could not be sent while the sidebar was open.
  
  Developer: marusin

• May 22, 2026
  description

  This extension helps prevent accidental sends when entering long prompts or messages in Gemini or NotebookLM chats.
  It supports the regular chat screen in Gemini and the chat input field in NotebookLM, and lets you choose the send key setting that works best for you.
  
  ■ Features
  - Press Enter to insert a line break
  - Send with Shift+Enter or Ctrl+Enter
  - Supports multiple send modes (Shift / Ctrl / Both / Shift+Ctrl)
  - Supports the regular chat screen in Gemini and the chat input field in NotebookLM
  - Multilingual UI support (English, Chinese, Japanese, Korean)
  
  ■ Benefits
  - Helps prevent accidental sends
  - Makes it easier to write longer prompts and messages
  - Reduces stress while typing
  - Lets you choose the send method that works best for you
  
  ■ Simple and safe
  - Lightweight and fast
  - No data collection
  - No external communication
  - Works only in supported chat fields in Gemini and NotebookLM
  - Does not apply to the source search field in NotebookLM
  
  ■ How to use
  - After installation, click the extension icon in the toolbar to enable or disable the extension and choose your preferred send key.
  - If Gemini or NotebookLM is already open when you install the extension, reload the page or click the extension icon once to open the popup.
  
  ■ Release Notes
  Version 1.2.0
  - Added support for the chat input field in NotebookLM
  - The source search field in NotebookLM is not supported
  - Maintained the existing behavior for the regular Gemini chat screen
  
  Developed by marusin

  Gemini Enter Key Control helps prevent accidental sends when typing long prompts or messages in Gemini and NotebookLM chats.
  It supports the standard Gemini chat page and the NotebookLM chat input, and lets you choose the send key setting that works best for you.
  
  ■ Features
  - Press Enter to insert a line break
  - Send with Shift+Enter or Ctrl+Enter
  - Supports multiple send modes (Shift / Ctrl / Both / Shift+Ctrl)
  - Supports the standard Gemini chat page and the NotebookLM chat input
  - Multilingual UI support (English, Chinese, Japanese, Korean)
  
  ■ Benefits
  - Helps prevent accidental sends
  - Makes it easier to write long prompts and messages
  - Reduces stress while typing
  - Lets you choose the send method that works best for you
  
  ■ Simple and safe
  - Lightweight and fast
  - No data collection
  - No external communication
  
  ■ Supported scope
  - Works only on supported chat fields in the web versions of Gemini and NotebookLM
  - Supported sites are https://gemini.google.com/ and https://notebooklm.google.com/
  - NotebookLM source search fields are not supported
  - Gemini in Chrome shown in the Chrome side panel is not supported
  
  ■ How to use
  - After installation, click the extension icon in the toolbar to enable or disable the extension and choose your preferred send key.
  - If Gemini or NotebookLM is already open during installation, reload the page or click the extension icon once to open the popup.
  
  ■ Release Notes
  Version 1.2.0
  - Added support for the NotebookLM chat input
  - NotebookLM source search fields are not supported
  - Existing behavior on standard Gemini chat is preserved
  
  Developed by marusin

• May 10, 2026
  description

  Gemini helps prevent accidental sends when you meant to insert a line break.
  It is a browser extension designed specifically for Gemini.
  
  ■ Features
  - Press Enter to insert a line break
  - Send with Shift+Enter or Ctrl+Enter
  - Supports multiple send modes (Shift / Ctrl / Both / Shift+Ctrl)
  - Multilingual UI support (English, Chinese, Japanese, Korean)
  
  ■ Benefits
  - Helps prevent accidental sends
  - Makes it easier to write longer prompts and messages
  - Reduces stress while typing
  - Lets you choose the send method that works best for you
  
  ■ Simple and safe
  - Lightweight and fast
  - No data collection
  - No external communication
  - Works only on Gemini
  
  ■ How to use
  - After installation, click the extension icon in the toolbar to enable or disable the extension and choose your preferred send key.
  
  ■ Release Notes
  Version 1.1.4
  - Improved the UI
  - Updated the store images
  
  Developed by marusin

  This extension helps prevent accidental sends when entering long prompts or messages in Gemini or NotebookLM chats.
  It supports the regular chat screen in Gemini and the chat input field in NotebookLM, and lets you choose the send key setting that works best for you.
  
  ■ Features
  - Press Enter to insert a line break
  - Send with Shift+Enter or Ctrl+Enter
  - Supports multiple send modes (Shift / Ctrl / Both / Shift+Ctrl)
  - Supports the regular chat screen in Gemini and the chat input field in NotebookLM
  - Multilingual UI support (English, Chinese, Japanese, Korean)
  
  ■ Benefits
  - Helps prevent accidental sends
  - Makes it easier to write longer prompts and messages
  - Reduces stress while typing
  - Lets you choose the send method that works best for you
  
  ■ Simple and safe
  - Lightweight and fast
  - No data collection
  - No external communication
  - Works only in supported chat fields in Gemini and NotebookLM
  - Does not apply to the source search field in NotebookLM
  
  ■ How to use
  - After installation, click the extension icon in the toolbar to enable or disable the extension and choose your preferred send key.
  - If Gemini or NotebookLM is already open when you install the extension, reload the page or click the extension icon once to open the popup.
  
  ■ Release Notes
  Version 1.2.0
  - Added support for the chat input field in NotebookLM
  - The source search field in NotebookLM is not supported
  - Maintained the existing behavior for the regular Gemini chat screen
  
  Developed by marusin

• May 10, 2026
  short_description

  Control Enter key behavior in Gemini. Press Enter for newline, Shift+Enter/Ctrl+Enter to send.

  Prevent accidental sends when you meant to insert a line break in Gemini and NotebookLM chats.

• May 10, 2026
  permissions

  storage

  storage, activeTab, scripting

• Apr 17, 2026
  description

  Control how the Enter key works in Gemini.
  Prevent accidental sends and customize your send key for better typing control.
  
  Customize Enter key behavior to prevent accidental message sending and improve typing control.
  
  ■ Features
  - Press Enter to insert a new line
  - Use Shift+Enter or Ctrl+Enter to send
  - Multiple send modes available (Shift, Ctrl, Both, Shift+Ctrl)
  - Multilingual UI support (English, Chinese, Japanese, Korean)
  
  ■ Benefits
  - Avoid accidental message sending
  - Write longer prompts comfortably
  - Improve typing control and accuracy
  
  ■ Simple & Safe
  - Lightweight and fast
  - No data collection
  - No external communication
  - Works only on Gemini
  
  ■ What's New (v1.1.3)
  - UI improvements
  
  Developed by marusin

  Gemini helps prevent accidental sends when you meant to insert a line break.
  It is a browser extension designed specifically for Gemini.
  
  ■ Features
  - Press Enter to insert a line break
  - Send with Shift+Enter or Ctrl+Enter
  - Supports multiple send modes (Shift / Ctrl / Both / Shift+Ctrl)
  - Multilingual UI support (English, Chinese, Japanese, Korean)
  
  ■ Benefits
  - Helps prevent accidental sends
  - Makes it easier to write longer prompts and messages
  - Reduces stress while typing
  - Lets you choose the send method that works best for you
  
  ■ Simple and safe
  - Lightweight and fast
  - No data collection
  - No external communication
  - Works only on Gemini
  
  ■ How to use
  - After installation, click the extension icon in the toolbar to enable or disable the extension and choose your preferred send key.
  
  ■ Release Notes
  Version 1.1.4
  - Improved the UI
  - Updated the store images
  
  Developed by marusin

Permissions & access

Permissions

storageactiveTabscripting

Host access

None declared

Screenshots