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suddenly problems in windows 10

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dear sirs,

Until a few days ago I was using firefox (40.0.2) in Windows 10 (home x32) without any kind of problem, but suddenly (without installing any plugin, or change any configuracion, etc.) have appeared several problems: The Bookmarks have disappeared and now I can not save any new ones, the customization does not work (the window about:customizing remains blank), and the search bar on the home page of Firefox is not working.

I already tried the solution described in "Can not add, change or save bookmarks - How to fix" without result.

Is it a general error? Or is personnel mine? How I can fix it?

thanks and regards,

All Replies (5)

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Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac Options)
key, and then starting Firefox. Is the problem still there?

Places Maintenance {web link} Allows to run Maintenance tasks on the database that drives Places, the bookmarks and history module behind Firefox.

On the computer with the problem,

Type about:support in the address bar and press Enter. Under the main banner, press the button; Copy Text To Clipboard.. Then in the reply box at the bottom of this page, do a right click in the box and select Paste. This will show us your system details. No Personal Information Is Collected.

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Thanks Fred McD,

Yes, in Safe Mode the problem is still there.

The "Places Maintenance" extension has not worked, it is frozen while performing the "executing maintenance tasks ...".

And has not worked uninstall completely Firefox (including C: \ Users \ ....... \ AppData \ Roaming \ Mozilla) and reinstall.

Additionally, in the general homepage firefox, not only the search bar is not working, the lower icons neither do (Downloads, History, Sync, etc.).

If it can help, when trying to import a "jon file" appears the message "Failed parsing of file backup".

Here's the system details:

Paràmetres bàsics de l'aplicació

Nom: Firefox Versió: 40.0.3 Identificador del muntatge: 20150826023504 Canal d'actualitzacions: release Agent d'usuari: Mozilla/5.0 (Windows NT 10.0; rv:40.0) Gecko/20100101 Firefox/40.0 Finestres multiprocés: 0/1 (per defecte: false)

Informes de fallada dels últims 3 dies

Tots els informes de fallada


Nom: Adobe Acrobat DC - Create PDF Versió: 15 Habilitada: true ID: web2pdfextension@web2pdf.adobedotcom

Nom: Places Maintenance Versió: 1.3.1-signed Habilitada: true ID:


Controladors de l'adaptador: igdumd32 Data del controlador: 11-15-2013 Descripció de l'adaptador: Intel(R) Graphics Media Accelerator Finestres accelerades amb GPU: 1/1 Direct3D 11 WARP (OMTC) GPU #2 Actiu: false ID del dispositiu: 0x08cf ID del proveïdor: 0x8086 ID del subsistema: 00000000 Motor WebGL: Blocat per la versió del controlador gràfic. Pan/Zoom asíncrons: none Paràmetres ClearType: Gamma: 3600 Pixel Structure: R ClearType Level: 100 Enhanced Contrast: 300 RAM de l'adaptador: Unknown S'ha habilitat el Direct2D: Blocat per la versió del controlador gràfic. S'ha habilitat el DirectWrite: false (10.0.10240.16430) Supports Hardware H264 Decoding: false Versió del controlador: windowLayerManagerRemote: true AzureCanvasBackend: skia AzureContentBackend: cairo AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0

Preferències modificades importants

accessibility.blockautorefresh: true browser.cache.disk.capacity: 358400 browser.cache.disk.filesystem_reported: 1 browser.cache.disk.smart_size.first_run: false browser.cache.disk.smart_size.use_old_max: false browser.cache.frecency_experiment: 2 true false browser.places.smartBookmarksVersion: 7 browser.privatebrowsing.autostart: true browser.startup.homepage_override.buildID: 20150826023504 browser.startup.homepage_override.mstone: 40.0.3 browser.urlbar.suggest.history: false browser.urlbar.suggest.openpage: false dom.apps.reset-permissions: true dom.mozApps.used: true extensions.lastAppVersion: 40.0.3 media.gmp-eme-adobe.lastUpdate: 1440274297 media.gmp-eme-adobe.version: 12 media.gmp-gmpopenh264.lastUpdate: 1440274289 media.gmp-gmpopenh264.version: 1.4 network.cookie.prefsMigrated: true network.predictor.cleaned-up: true places.history.expiration.transient_current_max_pages: 51476 plugin.disable_full_page_plugin_for_types: application/pdf plugin.importedState: true privacy.donottrackheader.enabled: true privacy.sanitize.migrateFx3Prefs: true storage.vacuum.last.index: 0

Preferències importants blocades


Context Gràfic (GC) incremental: true


Activat: true Evita l'accessibilitat: 0

Versions de la biblioteca

NSPR Versió mínima esperada: 4.10.8 Versió en ús: 4.10.8

NSS Versió mínima esperada: 3.19.2 Basic ECC Versió en ús: 3.19.2 Basic ECC

NSSSMIME Versió mínima esperada: 3.19.2 Basic ECC Versió en ús: 3.19.2 Basic ECC

NSSSSL Versió mínima esperada: 3.19.2 Basic ECC Versió en ús: 3.19.2 Basic ECC

NSSUTIL Versió mínima esperada: 3.19.2 Versió en ús: 3.19.2

Funcions experimentals


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Problems with bookmarks and history not working properly can be caused by a corrupted places.sqlite database file.

Type about:support in the address bar and press enter.

Under the page logo on the left side you will see Application Basics. Under this find Profile Folder. To it’s right press the button Show Folder. This will open your file browser to the current Firefox profile. Now Close Firefox.

Locate the places.sqlite file. Then rename or delete it. Restart Firefox.

Once this is done, you can recreate bookmarks from auto-backups.

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I have encountered similar problems after uploading Windows 10. I am operating a Home -64 Bit OS on an HP Notebook. Looking in the Security and Maintenance Page it suggested restoring without loss of files etc. The programs lost included Microsoft Visual C ++ 2005 Redistributable 8.0.56336, Mozilla Firefox 40.0.03 ( x 86 en-GB ) 40.0.03, Mozilla Maintenance Service, Skype Web Plugin Having completed this exercise the problems seem to have been solved to some extent. But still having problems in Settings as Windows Defender has greyed out with an error message saying it has been turned off but without identify the full reason.

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I've already tried the solutions related to the file "places.sqlite" without result.

I think that there is a compatibility problem with some recent update of Windows 10, because it is the only thing I've done in the tablet in recent weeks, and in addition, problems in firefox are several, not just those related to bookmarks.

I wouldn't return to Windows 8, so it seems I must expect future versions to work correctly for me.