Firefox Containers Preview
Mozilla is integrating its Multi-Account Containers feature directly into Firefox version 153. This native implementation allows users to isolate cookies and browsing sessions to improve privacy and organization without needing an external extension.
Why it matters
It represents a shift toward making advanced privacy-preserving tools standard for mainstream browser users, reducing reliance on third-party add-ons.
Today, we’re excited to announce the Preview of Containers in Firefox version 153, which lets you keep separate parts of your online life (work, shopping, personal, banking) logged into different accounts in the same browser window, but keeps your cookies and ad tracking isolated inside each container.
This means that stuff you do in one container isn’t seen by other containers. No longer will you search for a new hat to wear to a party, only to be inundated with ads for hats at every twist and turn on the internet for weeks to come.
For almost a decade, many of you have relied on our Multi-Account Containers extension to keep work, personal, and privacy-sensitive browsing separate without needing multiple browsers or profiles.
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