i-Ready LockDown Browser

by Respondus Inc · Education

Manifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

LockDown Browser is a custom browser that locks down the exam environment within specific learning and assessment systems

Users

+2M in 30 days

Rating

1.3 / 5

unchanged in 30 days

Ratings

−2 in 30 days

Store rank

#78

#77 among extensions

Version

0.4.91

updated 2 Oct 2026

Users

monthly, 2 years

Latest, 15 Oct 2026: 7,000,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years

Latest, 15 Oct 2026: 58 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 i-Ready LockDown Browser

During an online exam, LockDown Browser will prevent you from going to other URLs, switching applications, copying questions or printing. It essentially locks you into the exam until it's submitted for grading. This is NOT a limited-feature version and there are NO advertisements of any type.

Growth

Window	Users	Change	Ratings	Rating
7 days	0	+0.0%	+1	0.00
30 days	+2M	+40.0%	−2	0.00
6 months	+3M	+75.0%	+23	+0.14
1 year	+7M	–	+43	+0.01

Version history

5 versions recorded

0.4.912 Oct 2026

0.4.8423 Jul 2026

0.4.6711 Feb 2026

0.4.00.2715 Jul 2025

0.3.00.0893 Dec 2024

Details

Category: Education
First seen: 3 Dec 2024
Size: 4.6 MB
Languages: de, en, es, fr, it
Pricing: Free
Privacy policy: web.respondus.com
Extension ID: iomlfggdabcncjhepmeealcplegnmckn

Permissions and risk

Elevated riskimpact 4, likelihood 2

Permissions

system.displayhistorycookiesstoragewebNavigationwebRequesttabsactiveTabscriptingmanagementcontentSettingsbrowsingDatadeclarativeNetRequestWithHostAccessclipboardReadclipboardWritewallpaper

Site access

http://*/*https://*/*<all_urls>

Can read and change data on every website you visit.