Chromebook Extensions: How to Add, Manage, and Remove Them

Chromebook extensions install from the exact same Chrome Web Store as Chrome on Windows or Mac. There’s no separate “Chromebook edition” with a smaller catalog or different rules. That surprises people used to app stores that vary by device. What does differ, sometimes a lot, is what’s allowed to run: a school-managed Chromebook, a Guest session, or the difference between a browser extension and an Android app from the Play Store can all change what you can install and use.

This guide covers how extensions for Chromebook actually work, where the confusion usually starts, and what to do when an extension can’t protect the thing you care about (your open tabs) through a Powerwash, an update, or a freeze.

Quick Answer by Situation

What Are Chromebook Extensions?

Chromebook extensions are Chrome extensions running on ChromeOS, installed and managed the same way as on any other Chrome install. Since ChromeOS is built around the Chrome browser itself, there was never a need for Google to invent a separate extension format just for Chromebooks — Google Chromebook extensions are Chrome Web Store extensions, full stop.

That single-catalog design is genuinely convenient. If an extension works on Chrome for Windows, it works on a Chromebook, with the same install flow, the same permissions dialog, and the same management page. You don’t need to hunt for a “Chromebook version” of a tool, and developers don’t need to publish one separately.

Where it gets confusing is that ChromeOS also runs a second, entirely different kind of software: Android apps from the Google Play Store. Google’s own Chromebook help documentation treats these as two separate topics — “Add extensions” and “Install & use Android apps on your Chromebook” are listed individually, not folded into one combined guide. A password manager extension and a password manager Android app might look similar in the launcher, but they’re built differently, updated differently, and (as you’ll see below) treated differently by Guest mode and by device administrators. Knowing which one you’re dealing with saves a lot of troubleshooting time later.

How Do I Add Extensions to a Chromebook?

Click Add to Chrome on the extension’s Chrome Web Store listing, then confirm the permissions dialog that appears. That’s the entire flow, and it’s identical to installing an extension on Chrome anywhere else.

There’s nothing Chromebook-specific about any of these five steps, which is honestly the most useful thing to internalize here — if you’ve installed an extension on a Windows PC before, you already know how to do this. The one place it can go sideways is permissions: pay attention to what the dialog is asking for before clicking Add extension, since that’s your one real checkpoint before the extension starts running.

Where Is the Chromebook Extensions Store?

The Chromebook extensions store is the Chrome Web Store, at chromewebstore.google.com. There’s no separate storefront just for ChromeOS devices. Google describes the Chrome Web Store generally as where users go to customize Chrome by adding extensions, and that description applies to a Chromebook exactly as it applies to a Windows laptop.

The store’s homepage organizes listings into curated collections rather than a fixed set of categories. As of September 2026, those collections have included groupings like Favorites, AI-assistant picks, tab and bookmark management tools, weather widgets, focus tools, sustainability-themed extensions, and retro games — and Google rotates these seasonally, so what’s featured one month may look different the next. Themes live in their own separate section of the store, distinct from extensions, with collections such as official Color Themes by Chrome alongside seasonal or licensed-character themes.

Every listing you see (Google Chromebook extensions included) has gone through a formal publishing pipeline before it appeared: the developer prepared their files, registered a developer account, completed the listing, and submitted it for Google’s review. That’s the baseline trust layer underneath the whole store, regardless of which device you’re installing from.

What’s the Difference Between Chromebook Extensions and Android Apps?

Extensions and Android apps are two separate install systems on a Chromebook, each with its own store, its own runtime, and its own rules. Confusing the two is the single most common source of “why isn’t this working” questions about Chromebook software.

Both systems can be locked down by an organization managing the device, which is covered in more detail below. But day to day, the practical difference is simpler: if something needs to read or modify what’s happening inside your browser tabs (an ad blocker, a translator, a session saver) it’s almost always going to be a Chrome Web Store extension, not a Play Store app. If it needs to run independently of the browser, or you found it by searching Google Play rather than the Chrome Web Store, it’s an Android app, and none of the extension management steps in this guide apply to it.

How Do I Manage, Disable, or Remove Extensions on a Chromebook?

Open the Chrome menu, choose More tools, then Extensions, to see and control every extension you’ve installed. This is the same management surface Google’s own Chromebook troubleshooting guidance points to when a browser is misbehaving, and it’s the fastest way to check what’s currently running.

Disabling beats removing while you’re troubleshooting. If you’re not sure an extension is the culprit behind a problem, disable it first instead of removing it outright. That way you can turn it back on and confirm the connection, rather than reinstalling from scratch if it turns out to be unrelated.

This page also matters after a Chrome update. Extensions occasionally stop working when the underlying browser changes something they relied on — checking here for a warning icon on a card is often the fastest way to spot which one broke, rather than guessing.

Can My School or Work Chromebook Restrict Extensions?

Yes — a managed Chromebook can have its available extensions controlled entirely by an administrator, separate from anything you choose yourself. This applies to both browser extensions and Android apps, and it’s one of the more common reasons an extension you expect to see simply isn’t there.

Google’s own guidance is direct about this: an administrator can “set up or restrict certain features, install apps, monitor activity, and control how you use your Chromebook.” On the IT side, Chrome Enterprise’s admin documentation confirms a centralized console that lets administrators allow and block specific apps, force-install apps fleet-wide, and pin apps to the taskbar across every managed device at once. If your school or workplace has decided an extension isn’t allowed, no amount of clicking Add to Chrome from your end will change that.

The exact click-by-click path inside the admin console isn’t something an end user typically has access to anyway, so if you hit a wall here, the practical move is asking your IT department directly rather than troubleshooting further on your own device.

Do Extensions Work in Guest Mode on a Chromebook?

Android and Play Store apps definitely don’t work in Guest mode — Google states plainly that there’s no Play Store and apps can’t be installed while browsing as a guest. Browser extensions are a bit murkier: Chromebook’s own official documentation doesn’t spell out extension-specific behavior in Guest mode the way it does for Play Store apps.

The safe assumption, until Google documents this more explicitly, is that anything you depend on should be tested in the specific mode you plan to use it in — don’t assume a Guest session behaves identically to your normal signed-in profile just because Play Store apps and extensions are conceptually similar. If a Chromebook is shared (a family device, a classroom set, a library kiosk) that gap matters more than it sounds, since Guest mode is often exactly where you’d want a saved-tabs tool to still work.

Which Extensions Are Worth Installing on a Chromebook?

It depends on the job, but a few categories cover most of what people search for, and Google itself publishes or documents official options for some of the most common ones.

Notice what’s missing from that list on purpose: a general-purpose website blocker. Chrome has no native, consumer-facing site blocker, and this brief’s sourced material doesn’t confirm a specific third-party extension to recommend for that job — if you need one, Google’s Family Link is the documented, official route for a supervised account on a Chromebook. Picking extensions by the specific job they do, rather than by vague “must-have” lists, tends to leave you with fewer of them and fewer conflicts to troubleshoot later.

Can a Bad Extension Cause My Chromebook to Freeze or Slow Down?

Yes — reviewing and disabling recent extensions is one of Google’s own documented steps for a frozen or sluggish Chromebook, not just a guess people repeat online. It sits alongside a handful of other first-line fixes worth trying in order.

Google’s troubleshooting sequence starts simple: turn the Chromebook off, then back on. If a specific tab is frozen rather than the whole machine, a hard refresh with Ctrl + Shift + R often clears it. If an app or tab won’t respond at all, opening Task Manager with Shift + Esc lets you close it directly. From there, checking the Chrome menu, More tools, Extensions page (the same page covered above) to spot and disable anything installed or updated recently is a specific, named step in Google’s own guidance.

If none of that resolves it, Diagnostics (reachable through the launcher or through Settings, About ChromeOS, Diagnostics on ChromeOS 90 and later) checks memory, CPU, battery, and connectivity for a hardware-level cause instead of a software one. Google’s guidance treats a hard reset as a last resort to try only after other troubleshooting has failed, and Powerwash as the final option beyond that — worth knowing before you jump straight to either one over what might just be one misbehaving extension.

How Do I Protect My Tabs Through a Chromebook Update or Powerwash?

You back them up separately, because neither a routine ChromeOS update nor a Powerwash is designed to preserve your open browsing session on its own. These two events behave very differently, and mixing them up is an easy way to lose more than you meant to.

A regular ChromeOS update — checked at Settings, About ChromeOS, Check for updates, and applied by clicking Restart when prompted — downloads automatically and generally doesn’t erase local data. Extensions and their settings typically carry through an update fine, though an individual extension can still break if it wasn’t built for the new Chrome version underneath it. Chromebooks also get automatic updates for up to 10 years from a platform’s original release date, which you can check yourself at Settings, About ChromeOS, Additional details, Update schedule.

Powerwash is a different animal entirely. Triggered from the sign-in screen with Ctrl + Alt + Shift + R, it erases the Downloads folder, installed apps, and local settings — which includes your extensions and whatever they had stored locally. It doesn’t touch Google Drive files or anything on external or USB storage, and your Google Account itself isn’t stored on the device, so signing back in restores your account but not your browsing session. Recovery mode goes further still, erasing the entire drive, and is meant for a ChromeOS installation that’s corrupted or won’t boot at all — more destructive than Powerwash, not less.

Powerwash and Recovery don’t back anything up first. Neither process asks whether you’d like to save your open tabs before wiping local data. They simply proceed. If you haven’t saved a session somewhere else beforehand, whatever windows you had open are gone once the wipe finishes.

BelayTab exists for exactly this. It’s a free Chrome Web Store extension that saves your open tabs as named sessions with one click or Ctrl + Shift + S (Cmd + Shift + S on Mac), and separately saves a snapshot of every open window on its own every 5 minutes and whenever a window closes, without you having to remember to do anything. Tab groups, pinned tabs, and their order are all preserved. There’s no account required and no limit on how many sessions or tabs you keep, and a single Recovery screen brings together your snapshots, deleted sessions, your browser’s own recently closed windows, and any export files in one place — so after a Powerwash, reinstalling BelayTab and reopening your last saved session takes a couple of minutes instead of rebuilding forty tabs from memory.