Tab Runner

Tab Runner helps you open multiple URLs in the background without interrupting your current tab.

It is built for repeatable browsing workflows where you want to save a script once and run it again later with the same timing and URL rules.

What Tab Runner does

• Create and save multiple scripts
• Open links in the background with a configurable delay
• Use either a manual URL list or a template-based URL loop
• Generate URLs with {year} or {i} placeholders
• Preview generated URLs before running
• Reorder saved scripts with drag and drop
• Run or stop a script directly from the extension
• Reuse the same tab or rotate URLs across new tabs
• Control how many URLs open in each tab
• Enable optional mobile emulation
• Apply optional header profiles
• Keep the same workflow across Firefox, Chrome, and Edge

Template Loop

Use a URL template with placeholders such as {year} or {i}, then define:

• Start
• End
• Step

URL List

Paste one URL per line to create a fixed queue of pages to open.

This is useful for research tasks, review queues, and saved groups of links.

Tab reuse options

Each script can control how tabs are reused:

• 0 = always reuse the same extension-opened tab
• 1 = open each URL in its own new tab
• 2 or higher = reuse each tab for that many URLs, then open a new tab

Typical use cases

• Repeating searches across multiple years
• Opening research pages in the background
• Running saved batches of links
• Automating structured browsing tasks
• Testing pages with mobile emulation enabled

1. Open the extension
2. Create a new script
3. Choose Template Loop or URL List
4. Set the delay and tab reuse behavior
5. Save the script
6. Click Play to run it
7. Click Stop to end the run at any time

Tab Runner opens URLs that you define and stores your saved scripts locally in the browser for reuse.