Keep Accounts Apart with Browser Profiles and Containers
Most of us have more than one account on the same service: a work and a personal email, your own social profile and the one you manage for a club, a shared family shopping account. Signing in and out all day is slow and error-prone. Browsers offer three tools that keep sessions apart cleanly: profiles, containers and private windows.
Why separate sessions at all?
A website recognises you through cookies stored in your browser. One browser, one cookie jar, one signed-in account per site. Trying to use two accounts in the same jar leads to the familiar problems: posting from the wrong account, a work document opened with a personal login, or being signed out of one account every time you open the other.
Separating sessions also helps privacy. Sites and advertisers link your activity through cookies; keeping work, personal and "throwaway" browsing in separate jars stops them from merging into one profile.
Option 1: browser profiles
A profile is a complete, separate browser identity: its own cookies, history, saved passwords, bookmarks and extensions. Chrome, Edge, Firefox and Safari all support profiles.
| Browser | Where to find profiles |
|---|---|
| Chrome | Click your profile picture at the top right, then Add (or Add Chrome profile) |
| Edge | Click the profile icon at the top left or right, then Add profile |
| Firefox | Recent versions: the account menu or Settings offer profile management; older versions use the address about:profiles |
| Safari (Mac) | Safari › Settings › Profiles (Safari 17 and later) |
Best for: long-term separation such as work and personal, or each family member on a shared computer. Give each profile a different colour or picture so you always know which one you are in.
Downside: each profile opens in its own window, and extensions and settings have to be set up separately.
Option 2: containers (Firefox)
Firefox offers containers through Mozilla's free Multi-Account Containers extension. A container is a separate cookie jar inside the same window. Tabs get a coloured line showing which container they belong to: one tab can show your work email and the next your personal one, side by side.
- Create containers such as Work, Personal, Shopping and Banking.
- Set a site to "always open in" a particular container, so your bank never shares cookies with social media.
- Combine containers with a VPN feature where available if you need a different network location per container.
Best for: people who switch accounts many times a day and want everything in one window.
Option 3: private windows
A private (incognito) window starts with an empty cookie jar and forgets everything when you close it. It is handy for a quick second sign-in, for checking how a page looks to a signed-out visitor, or for using a friend's computer.
Two things to know:
- In most browsers, all private windows open at the same time share one session. Two private windows do not give you two separate accounts.
- Private mode does not hide you from websites, your employer's network or your internet provider. It only stops your own browser from keeping history and cookies afterwards.
Option 4: a second browser
The simplest approach of all: use one browser for work and another for personal life. It is less elegant than profiles, but it is impossible to confuse the two, and it is a good choice for people who find profiles confusing.
Which one should you use?
| Need | Best tool |
|---|---|
| Work and personal on one computer, every day | Separate profiles |
| Several accounts on the same site in one window | Firefox containers |
| A quick one-off second sign-in | A private window |
| A shared family computer | One profile per person, ideally one operating-system user per person |
| Keeping banking away from everything else | A dedicated profile or container used only for banking |
A word on the rules of each service
Separating sessions is about convenience and privacy for accounts you legitimately hold. Most services allow a personal and a work account, or a page you manage for someone else. Many do not allow one person to run several accounts to get around limits, bans or votes, and they detect it with much more than cookies. Profiles and containers are not a way around those rules, and we do not recommend trying.
Where email fits in
Each profile or container usually goes with its own email identity: your work address in the work profile, your personal address in the personal one. For short-lived sign-ups you do not want in either, a mail generator opened in a private window keeps the whole thing separate and forgettable. For accounts you want to keep but not tie to your main address, use an alias; our guide Disposable Email vs Alias vs Plus Addressing explains the difference.
Summary
Stop signing in and out. Use browser profiles for long-term separation, containers for many accounts in one window, and private windows for quick one-off sessions. If a single site still behaves strangely, clearing that site's cookies is usually the fix.