NumJump icon

NumJump

by Adam Ben-Aamr · Functionality & UI
Manifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

A simple extension that prefixes numbers based on a tab's position

Users
13
−1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#178K
#149K among extensions
Version
1.1.0
updated 22 Mar 2026

Users

monthly, 17 months
01122May 2025Feb 2026Oct 2026
Latest, 16 Oct 2026: 13 usersMove the mouse over the chart for any month

Ratings count

monthly, 17 months
001May 2025Feb 2026Oct 2026
Latest, 16 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About NumJump

Tired of counting tabs to find the one you want? NumJump makes navigating your Chrome tabs easier and faster by automatically adding number prefixes to each tab's title. Now you can visually identify tabs by number and quickly switch using your keyboard. View source code at: https://github.com/adambenaamr/NumJump Report bugs at: https://github.com/adambenaamr/NumJump/issues Key Features: * Auto-numbered tabs: Tabs are automatically prefixed with numbers 1 - 8. The last tab in a window is labeled "9.", and all others beyond 9 are marked as "-.". * Dynamic renumbering: Tabs are updated in real time when opened, closed, moved, or rearranged. * Smart handling: Chrome-internal tabs (e.g., chrome://) and restricted pages are safely skipped. * Minimal permissions: Works only on active tab titles and doesn't read or track content How it Works: As soon as the extension is installed, it begins monitoring your tab activity. Whenever you open, close, move, or update a tab, the extension renames the tab's title to include a number prefix based on its position in the current window for example: 1. Gmail | 2. Docs | 3. Stack Overflow | ... | 9. YouTube You can then switch instantly using: * ⌘/ctrl + 1 to ⌘/ctrl + 8 --> Tabs 1 to 8 * ⌘/ctrl + 9 --> The last tab Privacy & Security: * No background tracking or analytics * No access to the content of your tabs or browsing history * Open-source and lightweight Requirements: * Works on the latest version of Google Chrome * Based on Manifest V3 * Requires permission to run scripts on tabs to modify their titles

Growth

WindowUsersChangeRatingsRating
7 days−5−27.8%00.00
30 days−1−7.1%00.00
6 months−6−31.6%00.00
1 year+11+550.0%00.00

Version history

2 versions recorded
1.1.022 Mar 2026
1.0.030 May 2025

Details

Category
Functionality & UI
First seen
30 May 2025
Size
36 KB
Languages
en-US
Pricing
Free
Extension ID
bfojianomdkipcdiahmoajgbaanbdfaj

Permissions and risk

Moderate riskimpact 3, likelihood 2
Permissions
tabsscriptingactiveTab
Site access
<all_urls>
Can read and change data on every website you visit.

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