Hide Classroom Announcement Editor

by Lakeland School System · lakelandk12.org · Functionality & UI

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

Hides New Announcement button for posting Google Classroom announcements.

Users

20K

−10K in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#6,665

#5,790 among extensions

Version

1.1

updated 19 Dec 2025

Users

monthly, 2 years

Latest, 15 Oct 2026: 20,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years

Latest, 15 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 Hide Classroom Announcement Editor

By default, when a new Google Classroom is created, the Stream is set to 'Students can post and comment' but that can lead to issues if the Classroom is not monitored by the teacher. In our district we prefer to have the Stream set to 'Students can only comment' but there is no way for a Google Admin to change that default. To prevent teachers from needing to go into every Google Classroom that is auto-generated by the Google Admin to change the setting, installing this extension will prevent students from posting announcements to the Stream even if the setting has not been changed by the teacher. This does NOT prevent them from commenting on posts made by the teacher. Google admins wanting to use this in their domains should force install this extension on student Google accounts with Developer Tools disabled otherwise they could use the Inspect Tool. Updated December, 2025 to hide the "New Announcement" button in the updated UI.