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Why does Firefox not open my windows and tabs from last time until I have tried starting 3 or 4 times?

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  • 32 have this problem
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  • Last reply by guigs

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I have this problem with opening Firefox: My Startup options are set to "When Firefox starts: Show my windows and tabs from last time" However, each time I start Firefox, by clicking the icon in the Taskbar, it opens with a single blank tab. I repeat this using "Open New Window" and when I have up to 3 windows, all with single blank tabs open, I close them all. Once more I use "Open New Window" which only then opens with my windows and tabs from last time. Naturally, this induces initial panic each time, because I dread the thought of losing all my current tabs. What is going on here? How can I fix it? < Firefox 27.0.1 with Windows 7 Home Premium.>

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Hi really.again, Thank you for your question. When you open a new window all the tabs load from last time too? On startup do you have the same tabs show up? The tabs will not load until you click them is a setting as well in the Preferences > Tabs > "Don't load until..." but what you are describing sounds odd, like two things are trying to happen at the same time.

There are some troubleshooting steps we can take:

More down this road if nothing turns up starting Firefox in debug mode to find any error messages can reveal more info as well.

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Can you open the previous session via "History > Restore Previous Session" ?

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I also have this problem and until a solution is found I recommend using the Firefox extension Session Manager.

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This started happening to me with the upgrade to v30. Previously, new windows did the proper thing of showing previous tabs/windows.

I have history on, not in private mode, and have cleared cache.

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@triccare the add on mentioned does make a back up of every session in a profile folder. However if you do not clear the cache, can you see the windows from last time?