Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

After the most recent FF update, FF 3.6.6 will not load, citing the error message: "XULRunner / Error: Platform version '1.9.2.3' is not compatible with minVersion>=1.9.2.6 / maxVersion". Tried updating XULRunner with no luck. Downloaded fresh copy and

more options

After the most recent FF update, FF 3.6.6 will not load, citing the error message: "XULRunner / Error: Platform version '1.9.2.3' is not compatible with minVersion>=1.9.2.6 / maxVersion". Tried updating XULRunner with no luck. Downloaded fresh copy and installed. Still no luck.


This happened

Every time Firefox opened

FF updated to 3.6.6

User Agent

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB6.4; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

After the most recent FF update, FF 3.6.6 will not load, citing the error message: "XULRunner / Error: Platform version '1.9.2.3' is not compatible with minVersion>=1.9.2.6 / maxVersion". Tried updating XULRunner with no luck. Downloaded fresh copy and installed. Still no luck. == This happened == Every time Firefox opened == FF updated to 3.6.6 == == User Agent == Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB6.4; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

Toutes les réponses (3)

more options

Similar problem with a twist. Firefox stopped working under one profile but worked under others. I did a clean install of Firefox 3.6.8 (Windows XP SP3). I tried it from both profiles, but it still only works under one of the profiles. The error message complains that 1.9.2.3 is not compatible with the required 1.9.2.8.

more options

Do a clean reinstall and download a fresh Firefox copy from http://www.mozilla.com/firefox/all.html and save the file to the desktop. Uninstall your current Firefox version and remove the Firefox program folder before installing that copy of the Firefox installer. It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.

You can skip the step to create a new profile, that is not necessary for this issue. ..... See http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Clean_reinstall

more options

On netbook Lenovo S10e, XP SP3, FFx 3.6.8 cannot start. Message XULrunner error 1.9.2.6 not compatible with 1.9.2.8 After complete de-install (including remaining FFx folder) and clean re-install problem persists.