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Sometimes when i start up Firefox, all my app tabs are missing and i can not get them back unless i physically go do them all again. all my settings are correct as per the trouble shooting pages, but it keeps happening randomly every 1-2 weeks.

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When firefox starts, normally, not after a crash or restore, all the tabs i have pinned as app tabs disappear. I have to go do them all again, and this has happened at least 5-6 times now.

When firefox starts, normally, not after a crash or restore, all the tabs i have pinned as app tabs disappear. I have to go do them all again, and this has happened at least 5-6 times now.

Chosen solution

Thanks for the speedy reply. I already had all the Show My Windows, and Remember History. I also had the Firefox options un-checked in CC Cleaner. I have downloaded the app-tab-initializer, and here's hoping that I will no longer have the same problems ;) , it did happen earlier on this evening again tho, before I installed the app initializer. Thanks again :)

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App (pinned) tabs and Tab Groups (Panorama) are stored as part of the session data [1] in the file sessionstore.js [2] in the Firefox profile folder [3].

Make sure that you do not use "Clear Recent History" to clear the "Browsing History" when Firefox is closed because that prevails and prevents Firefox from opening tabs from the previous session.

It is also possible to use the "Show my windows and tabs from last time" setting, that is usually a more reliable way to restore session data.

If you use cleanup software like CCleaner then make sure that Session is unchecked in the settings for the Firefox application.

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Chosen Solution

Thanks for the speedy reply. I already had all the Show My Windows, and Remember History. I also had the Firefox options un-checked in CC Cleaner. I have downloaded the app-tab-initializer, and here's hoping that I will no longer have the same problems ;) , it did happen earlier on this evening again tho, before I installed the app initializer. Thanks again :)

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You're welcome