How to Review Connected Apps on Firefox Browser
If you use Firefox for work, social media, or cloud services, connected apps can quietly keep access to your accounts long after you stop using them.
This guide shows how to review connected apps on Firefox browser, understand what those permissions mean, and tighten your account security without disrupting your workflow.
What connected apps are and why they matter
Connected apps are third-party services or browser-integrated tools that can access parts of your account through permissions you granted.
In practice, this may include syncing data, reading profile information, managing files, or using single sign-on through services such as Google, Microsoft, GitHub, or Dropbox.
On Firefox, the browser itself usually does not store a single master list of every connected app across all websites.
Instead, you review app access in the accounts that the apps connect to, plus any Firefox features, extensions, or site permissions that may be involved.
That distinction matters because browser privacy and account permissions are related but not the same thing.
Where to look first in Firefox
Start by checking the areas where Firefox can influence app access.
This helps you separate browser-level settings from account-level connections.
1. Firefox extensions
Extensions can interact with websites, read page data, or add login functionality.
Review them at Menu > Add-ons and themes > Extensions.
Remove anything you do not recognize, no longer use, or cannot verify from a trusted publisher.
2. Site permissions
Firefox lets websites request permissions such as notifications, camera, microphone, location, and pop-ups.
Review them through Settings > Privacy & Security > Permissions.
While these are not always “connected apps,” they can expose more data than you expect if left unchecked.
3. Saved logins and sync
If you use Firefox Account and Sync, review whether passwords, bookmarks, open tabs, and add-ons are syncing across devices.
A synced extension or saved login can make access easier for apps you no longer actively use.
How to review connected apps on Firefox browser accounts
The most important step is checking the account portals behind the services you sign into through Firefox.
That is where most app connections are listed and managed.
Google account
Go to your Google Account security settings and open the section for third-party access.
Review apps with access to Gmail, Drive, Calendar, or basic profile information.
Revoke access for services you no longer recognize or no longer need.
Microsoft account
In your Microsoft account, review apps and services that can access Outlook, OneDrive, and profile data.
Pay close attention to older productivity tools, mail clients, and browser-based integrations you may have authorized months or years ago.
GitHub account
GitHub lists OAuth applications and GitHub Apps under account settings.
Check which apps can read repositories, write code, or manage workflows.
If you no longer use a deployment tool or editor integration, remove its access immediately.
Dropbox, Slack, Notion, and similar services
Cloud tools often connect through browser-based sign-in.
Review app connections inside each service’s security or connected apps page.
Look for file sync tools, automation platforms, and team integrations that may still have active tokens.
What to inspect when reviewing an app
Not every connected app is risky, but every app should earn its access.
Use the following checklist when deciding whether to keep or remove it.
- Publisher identity: Is the app from a recognized company or verified developer?
- Requested permissions: Does it ask for more access than its purpose requires?
- Last used date: Have you used it recently, or has it been dormant for months?
- Business need: Do you still need it for work, school, or personal tasks?
- Security posture: Does the app support two-factor authentication, SSO, or modern OAuth flows?
- Data scope: Can it read only what it needs, or does it have broad account access?
How to remove an app safely
Before revoking access, confirm whether the app stores critical data or syncs with another service you rely on.
Some apps may stop working immediately when removed, while others leave local files intact.
- Open the account portal where the app is listed.
- Review the permissions and note what the app can access.
- Check whether the app has an export or backup option.
- Revoke access or disconnect the app.
- Sign out of the app inside Firefox if a separate session exists.
- Clear related browser cookies if you want to force a fresh login later.
After removal, watch for login failures, missing sync data, or workflow interruptions.
If something breaks, reconnect only after confirming the app is legitimate and still necessary.
Firefox privacy settings that reduce future risk
Once you know how to review connected apps on Firefox browser, strengthen the browser itself so fewer unnecessary connections build up over time.
Use Enhanced Tracking Protection
Firefox’s Enhanced Tracking Protection helps limit cross-site tracking and reduces the number of third-party scripts that follow your activity.
Strict mode can improve privacy, though some websites may need exceptions to function correctly.
Audit cookies and site data
Stored cookies can keep you logged in to apps longer than intended.
Review and clear site data for services you no longer use, especially shared computers or workstations.
Limit extension sprawl
Every extra extension increases the surface area for browser access.
Keep only the add-ons you actually use, and prefer extensions from reputable publishers with clear permission scopes.
Keep Firefox updated
Firefox regularly ships security updates that fix vulnerabilities and improve permission handling.
Automatic updates reduce the chance that an old browser version will expose connected services to risk.
Signs an app should be removed immediately
Some connections are not worth keeping even temporarily.
Revoke access right away if you see any of these warning signs:
- The app publisher is unfamiliar or misspelled.
- The permissions are broader than expected.
- You did not intentionally connect the app.
- The app has not been used in a long time.
- You notice unusual sign-in alerts or account activity.
- The app asks for passwords instead of using standard OAuth authorization.
Helpful habits for ongoing account hygiene
Reviewing connected apps once is not enough if you use Firefox regularly across multiple services.
A simple maintenance routine keeps your accounts cleaner and easier to secure.
- Check connected apps every one to three months.
- Remove browser extensions you have not used in 30 days.
- Use a password manager to avoid repeated sign-ins to unknown services.
- Turn on two-factor authentication for every account that supports it.
- Use a separate browser profile for work, personal, and testing tasks.
- Review account security alerts and login history after adding a new app.
When you combine account reviews with Firefox privacy settings, you get a much clearer picture of what can access your data, when, and why.
That visibility is the real value of learning how to review connected apps on Firefox browser.