Ce site disposera de fonctionnalités limitées pendant que nous effectuons des opérations de maintenance en vue de vous proposer un meilleur service. Si un article ne règle pas votre problème et que vous souhaitez poser une question, notre communauté d’assistance est prête à vous répondre via @FirefoxSupport sur Twitter, et /r/firefox sur Reddit.

Rechercher dans l’assistance

Évitez les escroqueries à l’assistance. Nous ne vous demanderons jamais d’appeler ou d’envoyer un SMS à un numéro de téléphone ou de partager des informations personnelles. Veuillez signaler toute activité suspecte en utilisant l’option « Signaler un abus ».

En savoir plus

Firefox slowed to a crawl after updating Norton Security.

  • 4 réponses
  • 1 a ce problème
  • 7 vues
  • Dernière réponse par cor-el

more options

Updated to latest version of Norton. FF hung up ("not responding" msg) every time a new tab was opened. Refreshed FF; now tabs work fine, but FF is extremely slow. Pages that used to takt one second or less to load now take from two to ten minutes.

Updated to latest version of Norton. FF hung up ("not responding" msg) every time a new tab was opened. Refreshed FF; now tabs work fine, but FF is extremely slow. Pages that used to takt one second or less to load now take from two to ten minutes.

Solution choisie

You can check for problems with the places.sqlite database file (bookmarks, history) in the Firefox profile folder.

If the Places Maintenance extension can't repair the places.sqlite database file then remove all places.sqlite file(s) in the Firefox profile folder to make Firefox rebuild the places.sqlite database file from the most recent JSON backup in the bookmarkbackups folder.

You can check for problems with the sessionstore.js file in the Firefox profile folder that stores session data. When sessionstore.js is deleted you lose App Tabs and Tab Groups and open tabs and you will have to recreate them, so if necessary make a note or bookmark them.

You can use this button to go to the current Firefox profile folder:

Lire cette réponse dans son contexte 👍 1

Toutes les réponses (4)

more options

In the Add-ons Manager, on the left, select Extensions.

Some added toolbar and anti-virus add-ons are known to cause Firefox issues. Disable All of them.

Restart Firefox.

more options

Thanks, but there are no add-ons to disable. Problem persists.

more options

FredMcD said

toolbar and anti-virus add-ons
more options

Solution choisie

You can check for problems with the places.sqlite database file (bookmarks, history) in the Firefox profile folder.

If the Places Maintenance extension can't repair the places.sqlite database file then remove all places.sqlite file(s) in the Firefox profile folder to make Firefox rebuild the places.sqlite database file from the most recent JSON backup in the bookmarkbackups folder.

You can check for problems with the sessionstore.js file in the Firefox profile folder that stores session data. When sessionstore.js is deleted you lose App Tabs and Tab Groups and open tabs and you will have to recreate them, so if necessary make a note or bookmark them.

You can use this button to go to the current Firefox profile folder: