Firefox Multi-Account Containers
Mozilla's Firefox extension that separates cookies and logins into color-coded tab containers.
Liked for isolating banking and tracking-heavy sites in their own containers123, replacing separate browser profiles for multiple logins456, and sending only chosen tabs through a proxy.78 The most common caveat is that Firefox now has containers built in910, which leaves some users unsure what the extension still adds.1112
Why people recommend it
Site isolation · 3
Commenters assign banking and tracking-heavy sites to their own containers to keep cookies and tracking separate.
“the killer feature of Firefox containers for me”
“This has been one of my use cases for the Multi-Account Containers extension for some time now.”
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“For important stuff like banking I use Firefox containers.”
Replaces profiles · 3
Separate logins in one window remove the need for multiple browser profiles, for example when testing as different users.
“It has completely eliminated my need to have multiple browser profiles.”
“I used the Multi-Account Containers Extension to manage QA testing of web apps”
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“now that I got used to multi-account containers, I can't go back to chrome since it has no good equivalent”
Per-container proxy · 2
Commenters can route only selected tabs or sites through a proxy or home network instead of all browsing.
“With Multi-account containers I get to choose which tabs use the proxy :)”
“This one is one of my favorite things about Firefox containers.”
Long-term use · 3
Users say they have relied on containers for years and do not want to go back to browsing without them.
“I use the Firefox Multi-Account Containers, Temporary Containers, and Containerize extensions to manage my browsing and it's (mostly) a very nice experience.”
“I’ve been using Firefox Containers for years through Mozilla’s Multi-Account Containers extension.”
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“now that I got used to multi-account containers, I can't go back to chrome since it has no good equivalent”
Caveats and dissent
Native overlap · 2
Firefox now has built-in containers, and the extension mainly adds site assignments, sync and proxy integration.
“I’ve been using Firefox Containers for years through Mozilla’s Multi-Account Containers extension.”
“I've been using the containers feature already for years now on Firefox.”
Proxy breakage · 1
One user reports that Firefox's new built-in VPN broke the per-container proxy feature.
“This one is one of my favorite things about Firefox containers.”
Weaker than profiles · 1
One commenter prefers profiles because their boundaries are harder, for example against accidental Google sign-ins.
“I use profiles for this, I wonder what the tradeoffs are between the two approaches.”
Limited protection · 1
Containers block cookie tracking but cannot stop all device fingerprinting.
“This has been one of my use cases for the Multi-Account Containers extension for some time now.”
Rough edges · 1
One long-time user reports rough edges for certain tasks.
“I use the Firefox Multi-Account Containers, Temporary Containers, and Containerize extensions to manage my browsing and it's (mostly) a very nice experience.”
Often compared with
Who recommends it in their own words
Threads where it came up
- Firefox Containers Preview 8 mentions
- Telegram Desktop vulnerability allowed any user's file to be stolen 1 mention
- Hang on to Your Firefox 1 mention
- 22 Years on Firefox, and Today I'm All In 1 mention
- Ask HN: What free browser tools do you use daily? 1 mention
- Brave's latest browser release offers Containers for better and easier workflow 1 mention
Also written as Firefox Containers, Firefox Multi-Account Containers, Firefox containers. Data: firefox-multi-account-containers.json. Quotes are verbatim; the verdict and theme labels are written by a model from these comments, and every clause links to its sources.
All comments 13
“For important stuff like banking I use Firefox containers.”
“now that I got used to multi-account containers, I can't go back to chrome since it has no good equivalent”
“It has completely eliminated my need to have multiple browser profiles.”
“Multi-Account Containers”
“With Multi-account containers I get to choose which tabs use the proxy :)”
“This one is one of my favorite things about Firefox containers.”
“This has been one of my use cases for the Multi-Account Containers extension for some time now.”
“I use profiles for this, I wonder what the tradeoffs are between the two approaches.”
“the killer feature of Firefox containers for me”
“I used the Multi-Account Containers Extension to manage QA testing of web apps”
“I’ve been using Firefox Containers for years through Mozilla’s Multi-Account Containers extension.”
“I've been using the containers feature already for years now on Firefox.”
“I use the Firefox Multi-Account Containers, Temporary Containers, and Containerize extensions to manage my browsing and it's (mostly) a very nice experience.”