Docs Install for Chrome

How-to guide

How to turn off an extension on one website

In TabCmdr’s settings, choose Sites and add the domain to the Block List, one per line. The palette stops opening there and keeps working on every other site.

Quick answer

Block a site in three steps

  1. ⌘K

    Step 1

    Open the palette

    Ctrl+K on Windows and Linux.

  2. settings

    Step 2

    Find settings

    TabCmdr Settings shows up under Commands.

  3. ↵

    Step 3

    Open it and add the site

    Sites, then the Block List. One domain per line.

Chrome's way

Limit where an extension runs in Chrome

Chrome lets you choose where each extension can read and change sites:

  1. Open the More menu (⋮), choose Extensions, then Manage extensions.
  2. Choose Details on the extension.
  3. Change Allow this extension to read and change all your data on websites you visit to On select, On specific sites or On all sites. With On specific sites, you add the sites the extension is allowed on.

These options pick the sites an extension may run on, rather than one site to leave out.

Source: Google’s Install and manage extensions help page, checked in October 2026.

TabCmdr's way

Turn off TabCmdr on one site

TabCmdr is a keyboard launcher that lives in your browser. If a site already uses ⌘+K or Ctrl+K for its own search, or you just don’t want the palette there, add the site to TabCmdr’s Block List. Everywhere else stays as it is.

Step 1: Open TabCmdr Settings

Press ⌘+K on a Mac or Ctrl+K on Windows and Linux, type settings and press Enter on TabCmdr Settings.

Step 2: Choose Sites

Pick Sites in the sidebar. Blocked Sites is the second section on the page.

Step 3: Add the domain to the Block List

Type the domain in the Block List box, one per line. The list saves on its own a moment after you stop typing.

TabCmdr settings on the Sites page, with mail.google.com and figma.com in the Blocked Sites Block List
Two sites in the Block List. TabCmdr won’t open on either of them or their subdomains.

On those sites, pressing the shortcut does nothing. To turn TabCmdr back on for a site, delete its line.

How TabCmdr reads the list

  • Subdomains are included. github.com also blocks gist.github.com.
  • www. doesn’t matter. www.notion.so and notion.so are the same entry.
  • Full addresses are trimmed to the domain. Paste https://mail.google.com/mail/u/0/ and TabCmdr keeps mail.google.com.
  • Lines that aren’t domains are flagged. They’re listed under the box as invalid entries and left out until you fix them.

Try it on your own tabs

Works in Chrome, Edge, Brave, Arc, Vivaldi and Opera.

Install for Chrome

FAQ

Questions about blocking sites

More in the documentation.

Does blocking a domain also block its subdomains?

Yes. github.com also covers gist.github.com. www. is ignored, so notion.so and www.notion.so are the same entry.

Can I block one page instead of a whole site?

No. Each line is a domain. If you paste a full address, TabCmdr keeps only the domain, so https://mail.google.com/mail/u/0/ becomes mail.google.com.

What happens when I press the shortcut on a blocked site?

Nothing. The palette doesn’t open on that site. On every other site the shortcut works as usual.

Can I still use TabCmdr while I'm on a blocked site?

Yes. Click the TabCmdr icon in the toolbar. The palette opens from the toolbar instead of on the page.

What if I type something that isn't a domain?

TabCmdr lists it under the box as an invalid entry and doesn’t save that line. The other lines still save. Fix or delete the invalid one.

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