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1. #Recover sessionrestore jsonlz4 how to#
2. #Recover sessionrestore jsonlz4 update#
3. #Recover sessionrestore jsonlz4 manual#
4. #Recover sessionrestore jsonlz4 upgrade#
5. #Recover sessionrestore jsonlz4 windows#

#Recover sessionrestore jsonlz4 windows#

windows the currently opened windows (array).The disk writes to sessionstore.js over an 8 hour day can be big: is the least-commonly-used codepath (used only once per session), it can certainly be used to shrink the size of sessionstore.js for users who restart Firefox manually.Įarly Telemetry indicates that 75% percent of Nightly users have a sessionstore.js weighing 194kb or less and 95% of users have 1.2Mb or less:Īnd 100k+ users have a sessionstore.js >10MB. We could probably remove closed tabs and windows. Since crashes can happen at any time, we are pretty much in a dead-end here.įor 2., since the user has quit and reopened manually, we can afford to save less (actually, we already do). This means that we need to write all the costly stuff, including DOM Session Storage (which is currently what takes most of the disk space, iirc), forms, etc.

#Recover sessionrestore jsonlz4 update#

and 3., we need to be able to resume in the exact same state, or users are going to be really annoyed – users can forgive a crash or an update if it just means that they lose the few seconds needed to restart Firefox, but not if they also lose their work.

#Recover sessionrestore jsonlz4 upgrade#

Upgrade Firefox or Extensions without losing state.įor 1. Quit and restart from the same browsing position (either manually or automatically) ģ. SR is designed for the following use cases:Ģ. The Extension is also be able to "Forget closed tabs" and "Forget closed windows" and shows settings, timings and size.

This extension shows the content of the Session Store as a page in a tab/window, when the user opens about:sessionstore. The maximum number of closed windows that get saved.ī_level_deferred:ī_hidden_tabs:ī_pinned_tabs_on_demand:ī_session_once:ī: The maximum number of closed tabs that get saved. The maximum number of 'forward button' session history entries to store in sessionstore.js.ĭefault: -1 (-1 = no limit / 0 = only the currently active entry will be saved)

The maximum number of 'back button' session history entries to store in sessionstore.js.ĭefault: 10 (-1 = no limit / 0 = only the currently active entry will be saved)ī_serialize_forward: The maximum number of session history entries to keep in working memory (which includes the 'current' page).ī_total_viewers:ī_closed_after:ī_resumed_crashes: Session Store settings can be set by experienced users via about:config. Save interval: The file is saved whenever a change that needs to be saved is detected, with a cap that forces at least 15 seconds (by default) between two successive changes. Windows 7: :\Users\\AppData\Roaming\Mozilla\Firefox\Profiles\]\

#Recover sessionrestore jsonlz4 manual#

Windows that are closed and more then set in _windows_undo (since Firefox ?) ĭata we forget on a manual close of the browser.Tabs that are closed and more then set in _tabs_undo (since Firefox ?).Tabs/windows that are closed a long time before, set in _closed_after (target for Firefox 32).Pages loaded after, that are more then set in _serialize_forward (since Firefox 30).Pages loaded before, that are more then set in _serialize_back (since Firefox 30).Form data (for the case of a browser or system crash).Loaded pages before and after (back and forward buttons).Closed windows and tabs (closed tabs, tabs in closed windows, closed tabs in closed windows).This page is about documenting things progressively. For this reason, it is undergoing major refactorings and redesigns. It was designed a long time ago, when users only had a few tabs, when DOM Storage didn't exist and before people started uploading Gigabytes of data. This service is extremely useful but is also quite expensive. Session Restore is the service that saves the state of Firefox while the user is browsing so as to be able to restore it after a shutdown or a crash. 6.5 Forgetting closed tabs/windows when Firefox closes normal.6.4 Forgetting closed tabs/windows after a time.5.2.5 Binary format that can be loaded/modified piecewise.5.2.4 Save separately index (one file), tabs (one file per tab).5.2.3 Journalize files, consolidate them on idle-daily and shutdown.2.4 Data we forget on a manual close of the browser.1 What is Session Restore, why this page?.

#Recover sessionrestore jsonlz4 how to#

If you are unfamiliar with how to locate your folder, please see: Profiles - Where Firefox stores your bookmarks, passwords and other user data on Mozilla Support.