
Key points
- Arc browser service ends on December 22, 2025.
- Users lose account access on that date.
- Data migrates automatically to the Dia browser.
The Browser Company is terminating its Arc browser service on December 22, shifting full resources to its artificial intelligence product, Dia. According to Engadget, this move ends support for the personalized browsing tool that allowed users to customize website interfaces. The vendor is actively encouraging current Arc members to transition to the new platform before the shutdown date.
By the numbers
- December 22 is the final day for Arc access.
- One new product, Dia, receives primary focus.
- Automatic transfer applies to bookmarks, extensions, passwords and history.
What the figures mean
The December 22 cutoff marks the end of account access for Arc users. The vendor states that bookmarks, extensions, passwords, and history will transfer automatically to Dia. This migration aims to retain the user base while introducing generative AI capabilities. The shift reflects a strategic decision to prioritize AI-driven browsing over traditional customization features.
What should you do?
Managed service providers should verify which client environments rely on Arc for daily operations. Check internal documentation for any custom configurations or extensions that may not transfer seamlessly to Dia. Communicate the December 22 deadline to affected users well in advance to allow time for data validation. Monitor the migration process to ensure password managers and history records move correctly.
Operational impact
Teams usually need to assess how browser shutdowns affect existing workflows and third-party integrations. Check whether any internal tools depend on Arc-specific features or extensions that may not exist in the new platform. Identify which departments use the browser for critical tasks and ensure they have a fallback option during the transition.
Inform security and compliance teams about the data migration process to verify that sensitive information, such as passwords and history, moves securely. Determine who within the organization needs to approve the switch to an AI-centric browser, especially if it involves new data handling practices. Coordinate with vendor support to resolve any migration errors before the final cutoff date.
What to do and how to stay safe: Arc browser
- Verify that all critical bookmarks and extensions are present in the new Dia profile after migration.
- Confirm that password managers sync correctly and that no credentials are lost during the transfer.
- Review the optional AI features in Dia to ensure they align with organizational security policies.
- Document any lost data or configuration issues for post-migration troubleshooting and vendor support.
Step-by-step guide: Shadow AI Explained: 8 Questions Answered for Secure Operations
General security guidance from the BitShield News newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
When does Arc browser stop working?
Arc browser service ends on December 22, after which users can no longer access their accounts.
Does data transfer to Dia automatically?
Yes, the vendor states that bookmarks, extensions, passwords, and history will transfer automatically.
Are AI features mandatory in Dia?
No, the vendor notes that additional AI features in Dia are optional for users.



