Browser.sessionstore.max tab back history

From MozillaZine Knowledge Base

The title given to this article is incorrect due to technical limitations. The correct title is browser.sessionstore.max_tab_back_history.

This article describes the preference browser.sessionstore.max_tab_back_history. To add, delete, or modify this preference, you will need to edit your configuration — do not edit this article.

1 Background
2 Possible values and their effects
3 First checked in
4 Has an effect in
5 Related bugs
6 Related preferences
7 External links

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Background

Firefox 2 introduced a built-in Session Restore feature, allowing the user to continue browsing from where they left off if browser restarts. However, during Firefox 3 development, it was discovered that the feature negatively affected page load times. To address this, a limit was established for how many previous session history entries were kept for each saved tab. This preference set that limit.

Eventually it was determined that limiting session history entries for saved tabs did not significantly improve performance, and the code performing the limiting was backed out.

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