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All tabs from prevoius session reload,

no tab manager add-on/ext. Have startup set to "open a blank page" Has happened last 3-4 updates (just updated again). Thx

no tab manager add-on/ext. Have startup set to "open a blank page" Has happened last 3-4 updates (just updated again). Thx

Chosen solution

You can check if you have a user.js file in the Firefox profile folder that sets the browser.sessionstore.resume_session_once pref to true.

You can use this button to go to the currently used Firefox profile folder:

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Chosen Solution

You can check if you have a user.js file in the Firefox profile folder that sets the browser.sessionstore.resume_session_once pref to true.

You can use this button to go to the currently used Firefox profile folder: