DevTools Containing Block Pane icon

DevTools Containing Block Pane

by Bramus Van Damme · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

Adds a 'Containing Block' pane to the DevTools Elements Panel.

Users
19
−1 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#153K
#127K among extensions
Version
1.0.1
updated 27 Mar 2026

Users

monthly, 7 months
01019Mar 2026Jul 2026Oct 2026
Latest, 16 Oct 2026: 19 usersMove the mouse over the chart for any month

Ratings count

monthly, 7 months
012Mar 2026Jul 2026Oct 2026
Latest, 16 Oct 2026: 2 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 DevTools Containing Block Pane

Use this DevTools extension to debug and visualize the Containing Block of an element.

Growth

WindowUsersChangeRatingsRating
7 days−1−5.0%00.00
30 days−1−5.0%00.00
6 months+6+46.2%+10.00

Chrome Web Store search rankings

Where DevTools Containing Block Pane appears when people search the store, with the 30 day change
Search phrasePosition30 days
contain#20

Version history

2 versions recorded
1.0.127 Mar 2026
1.0.025 Mar 2026

Details

Category
Developer Tools
First seen
25 Mar 2026
Size
26 KB
Languages
en
Pricing
Free
Support
github.com
Extension ID
cfhjohibdfclahlfljknkjmcdkfkcflj

Permissions and risk

Moderate riskimpact 3, likelihood 2
Permissions
tabs

Alternatives to DevTools Containing Block Pane

Extensions that rank for the same store searches or share the Developer Tools category, ordered by users
Tampermonkey12M users · 4.8 ★ · 73,078 ratings Tampermonkey BETA700K users · 4.8 ★ · 4,555 ratings GoFullPage - Full Page Screen Capture11M users · 4.9 ★ · 84,440 ratings touchenex 확장8M users · 1.2 ★ · 6,328 ratings TrendAI™ Toolbar for Enterprise7M users · 1.2 ★ · 45 ratings SentinelOne6M users · 1.4 ★ · 190 ratings React Developer Tools5M users · 3.5 ★ · 1,644 ratings ColorZilla4M users · 4.7 ★ · 3,939 ratings