New Browser Tab Opening to Previous or Existing Session

Hi adamlob​,

I think this may be related to Fabric’s newer tabbed navigation experience rather than a browser-session problem.

Fabric now keeps open work items in a horizontal tab bar, and Microsoft documents that opening an item in a new browser tab can preserve the same item and surrounding Fabric context. Because of that, opening another Fabric tab or window may no longer behave like starting a completely separate workspace session. You can read more about the current behaviour in Microsoft’s guidance on using Fabric Home and tabbed navigation.

I have not found a documented Fabric setting that disables this behaviour globally.

For keeping workspaces clearly separated, I would use one of these approaches:

• Open the required workspace directly from its URL rather than duplicating the existing Fabric tab.
• Use separate browser profiles when I need genuinely isolated Fabric contexts.
• Use an InPrivate or Incognito window for a temporary independent session.
• Pin or rename the relevant Fabric tabs so that the active workspace remains obvious.

I would still test another browser or an InPrivate window once, because that helps distinguish the intended Fabric tab experience from a browser-specific session-restoration issue. However, if the same behaviour occurs consistently across browsers, I would not expect clearing the cache to provide a permanent fix.

If this only started recently and there is no option to disable it, I would also consider submitting feedback through Fabric, since the current documentation explains how tab context is preserved but does not appear to expose a preference for always opening a clean Fabric session.

I hope this helps clarify what may have changed.

AI-assisted drafting: AI was used to help structure and phrase this response. I reviewed and validated the technical content before posting.