{"id":8517,"date":"2021-04-14T12:02:22","date_gmt":"2021-04-14T12:02:22","guid":{"rendered":"https:\/\/windowsreport.com\/fr\/?p=8517"},"modified":"2025-09-26T12:34:55","modified_gmt":"2025-09-26T09:34:55","slug":"changer-navigateur-par-defaut-firefox","status":"publish","type":"post","link":"https:\/\/windowsreport.com\/fr\/changer-navigateur-par-defaut-firefox\/","title":{"rendered":"D\u00e9finir Firefox comme navigateur par d\u00e9faut Windows 10"},"content":{"rendered":"\n<p>La possibilit\u00e9 de d\u00e9finir Firefox comme navigateur par d\u00e9faut Windows 10 devrait \u00eatre implicite. Mais les choses ne se passent pas comme \u00e7a en&nbsp;r\u00e9alit\u00e9. M\u00eame si Microsoft fait de son mieux pour promouvoir Edge, la majorit\u00e9 des utilisateurs sont assez satisfaits de ce que Chrome et Firefox ont \u00e0 offrir.<\/p>\n\n\n\n<p>En th\u00e9orie, vous devriez pouvoir choisir un alternative en fonction de vos pr\u00e9f\u00e9rences et changer le navigateur par d\u00e9faut Windows 10 sans difficult\u00e9.<\/p>\n\n\n\n<p>Cependant, certains utilisateurs ont signal\u00e9 qu&rsquo;il \u00e9tait impossible de mettre Firefox comme navigateur par d\u00e9faut Windows 10. Heureusement, o\u00f9 il y a des probl\u00e8mes, nous trouvons des solutions.<\/p>\n\n\n\n<p>Dans le guide ci-dessous, nous vous montrerons exactement quoi faire lorsqu&rsquo;il est impossible changer navigateur par d\u00e9faut Windows 10 en Firefox.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Comment faire pour que Firefox soit le navigateur par d\u00e9faut ?<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"1\">1. Changez le navigateur par d\u00e9faut Windows 10<\/h3>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/sites\/3\/2021\/04\/economiseur-de-batterie-Opera.png\"><img decoding=\"async\" width=\"900\" height=\"450\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/sites\/3\/2021\/04\/economiseur-de-batterie-Opera.png\" alt=\"\" class=\"wp-image-8446\" srcset=\"https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/economiseur-de-batterie-Opera.png 900w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/economiseur-de-batterie-Opera-330x165.png 330w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/economiseur-de-batterie-Opera-120x60.png 120w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/economiseur-de-batterie-Opera-140x70.png 140w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/economiseur-de-batterie-Opera-64x32.png 64w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/a><\/figure><\/div>\n\n\n\n<p>Si vous ne parvenez pas \u00e0 d\u00e9finir Firefox comme navigateur par d\u00e9faut Windows 10, essayez plut\u00f4t d&rsquo;installer Opera.<\/p>\n\n\n\n<p>Bien qu&rsquo;il ne soit pas aussi populaire que Firefox, Edge ou Chrome, ceux qui l&rsquo;ont install\u00e9 ont d\u00e9clar\u00e9 qu&rsquo;ils n&rsquo;avaient besoin d&rsquo;aucun autre navigateur.<\/p>\n\n\n\n<p>Opera est rapide, <a href=\"https:\/\/windowsreport.com\/fr\/navigateur-leger-vieux-pc-lent\/\" target=\"_blank\" rel=\"noreferrer noopener\">l\u00e9ger<\/a> et <a href=\"https:\/\/windowsreport.com\/fr\/navigateur-securise-donnees-bancaires\/\" target=\"_blank\" rel=\"noreferrer noopener\">s\u00e9curis\u00e9<\/a>. Vous remarquerez certainement une diff\u00e9rence significative en termes de vitesse et de r\u00e9activit\u00e9 par rapport aux autres navigateurs que vous avez utilis\u00e9s.<\/p>\n\n\n\n<p>Donc, si tous les autres navigateurs vous ont beaucoup d\u00e9\u00e7u en raison de probl\u00e8mes techniques ou de probl\u00e8mes de confidentialit\u00e9, passez \u00e0 <span>Opera.<\/span> Pourquoi ne pas utiliser une meilleure alternative si elle est d\u00e9j\u00e0 disponible gratuitement ?<\/p>\n\n\n\n<section class=\"wp-block-windowsreport-companion-disposable-cta-block rmudcb\"><img decoding=\"async\" class=\"rmudcb__image\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/sites\/3\/2020\/09\/Opera-logo-210x160.jpg\" alt=\"Opera\" \/><div class=\"rmudcb__content\"><h3>Opera<\/h3><span>Profitez d&rsquo;une exp\u00e9rience de navigation impeccable gr\u00e2ce \u00e0 ce navigateur supr\u00eame!<\/span><\/div><div class=\"rmudcb__button\"><strong>T\u00e9l\u00e9charger<\/strong><a href=\"https:\/\/out.reflectormedia.com\/c?o=20566306&#038;m=17686&#038;a=758367&#038;aff_sub1=[current_url]&#038;aff_sub2=Native\" class=\"btn btn--big btn--rounded btn--icon btn--basket\" target=\"_blank\">Visiter site<\/a><\/div><\/section>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2\">2. Modifiez le navigateur par d\u00e9faut dans les param\u00e8tres<\/h3>\n\n\n\n<ol class=\"wp-block-list\"><li>Appuyez sur les touches<strong> Windows + I<\/strong> pour ouvrir l&rsquo;application <strong>Param\u00e8tres<\/strong>.<\/li><li>Ensuite, choisissez <strong>Applications<\/strong> et s\u00e9lectionnez <strong>Applications par d\u00e9faut<\/strong> dans le volet gauche.<\/li><li>Faites d\u00e9filer vers le bas et cliquez sur <strong>Navigateur Web<\/strong>. <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/sites\/3\/2021\/04\/Parametres_changer-navigateur-web-par-defaut.jpg\"><img decoding=\"async\" class=\"aligncenter wp-image-8523 size-full\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/sites\/3\/2021\/04\/Parametres_changer-navigateur-web-par-defaut.jpg\" alt=\"\" width=\"734\" height=\"500\" srcset=\"https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Parametres_changer-navigateur-web-par-defaut.jpg 734w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Parametres_changer-navigateur-web-par-defaut-308x210.jpg 308w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Parametres_changer-navigateur-web-par-defaut-120x82.jpg 120w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Parametres_changer-navigateur-web-par-defaut-140x95.jpg 140w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Parametres_changer-navigateur-web-par-defaut-64x44.jpg 64w\" sizes=\"(max-width: 734px) 100vw, 734px\" \/><\/a><\/li><li>Choisissez <strong>Firefox<\/strong> dans la liste.<\/li><\/ol>\n\n\n\n<p>M\u00eame si le navigateur par d\u00e9faut peut \u00eatre d\u00e9fini directement dans ses param\u00e8tres, cette m\u00e9thode peut \u00e9chouer. Un itin\u00e9raire plus s\u00fbr consiste \u00e0 acc\u00e9der aux param\u00e8tres de votre PC.<\/p>\n\n\n\n<p>C&rsquo;est dans cet \u00e9cran que vous pouvez s\u00e9lectionner Firefox comme navigateur par d\u00e9faut. Par la suite, vous devriez pouvoir ouvrir tous les liens Web et fichiers associ\u00e9s avec Firefox.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3\">3. R\u00e9initialisez les param\u00e8tres et r\u00e9attribuez les programmes par d\u00e9faut<\/h3>\n\n\n\n<ol class=\"wp-block-list\"><li>Appuyez sur les touches<strong> Windows + I<\/strong> pour ouvrir les <strong>Param\u00e8tres<\/strong>.<\/li><li>Ensuite, ouvrez la section <strong>Applications<\/strong> et s\u00e9lectionnez <strong>Applications par d\u00e9faut<\/strong> dans le volet gauche.<\/li><li>Faites d\u00e9filer vers le bas et cliquez sur le bouton <strong>R\u00e9initialiser. <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/sites\/3\/2021\/04\/Reinitialiser-les-applications-par-defaut_parametres.png\"><img decoding=\"async\" class=\"aligncenter wp-image-8524 size-full\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/sites\/3\/2021\/04\/Reinitialiser-les-applications-par-defaut_parametres.png\" alt=\"\" width=\"724\" height=\"290\" srcset=\"https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Reinitialiser-les-applications-par-defaut_parametres.png 724w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Reinitialiser-les-applications-par-defaut_parametres-330x132.png 330w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Reinitialiser-les-applications-par-defaut_parametres-120x48.png 120w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Reinitialiser-les-applications-par-defaut_parametres-140x56.png 140w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Reinitialiser-les-applications-par-defaut_parametres-64x26.png 64w\" sizes=\"(max-width: 724px) 100vw, 724px\" \/><\/a><\/strong><\/li><li>Attribuez tous les programmes principaux et choisissez <strong>Firefox<\/strong> dans la liste des navigateurs disponibles.<\/li><\/ol>\n\n\n\n<p>Le probl\u00e8me persiste-t-il? Ne vous inqui\u00e9tez pas, il existe encore plusieurs fa\u00e7ons de le r\u00e9soudre. Revenons aux param\u00e8tres et r\u00e9initialisons tous les programmes aux valeurs par d\u00e9faut. Apr\u00e8s cela, red\u00e9marrez votre PC.<\/p>\n\n\n\n<p>Assurez-vous que vous utilisez la version compl\u00e8te de Mozilla Firefox. En effet, une version portable du navigateur ne cr\u00e9era pas d&rsquo;entr\u00e9e dans le Registre. Ceci signifie que Windows 10 ne reconnait pas le navigateur, d&rsquo;o\u00f9 l&rsquo;impossibilit\u00e9 de d\u00e9finir Firefox comme navigateur par d\u00e9faut Windows 10.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4\">4. D\u00e9finissez les associations de programmes individuellement<\/h3>\n\n\n\n<ol class=\"wp-block-list\"><li>Ouvrez l&rsquo;application <strong>Param\u00e8tres.<\/strong><\/li><li>Acc\u00e9dez \u00e0 l&rsquo;\u00e9cran des <strong>Applications<\/strong>.<\/li><li>S\u00e9lectionnez <strong>Applications par d\u00e9faut<\/strong> dans le volet gauche.<\/li><li>Ensuite, cliquez sur <strong>Choisir les applications par d\u00e9faut par type de fichier<\/strong>. <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/sites\/3\/2021\/04\/Parametres_Choisir-les-applications-par-defaut-par-type-de-fichier.png\"><img decoding=\"async\" class=\"aligncenter wp-image-8525 size-full\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/sites\/3\/2021\/04\/Parametres_Choisir-les-applications-par-defaut-par-type-de-fichier.png\" alt=\"\" width=\"425\" height=\"383\" srcset=\"https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Parametres_Choisir-les-applications-par-defaut-par-type-de-fichier.png 425w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Parametres_Choisir-les-applications-par-defaut-par-type-de-fichier-233x210.png 233w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Parametres_Choisir-les-applications-par-defaut-par-type-de-fichier-120x108.png 120w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Parametres_Choisir-les-applications-par-defaut-par-type-de-fichier-140x126.png 140w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Parametres_Choisir-les-applications-par-defaut-par-type-de-fichier-64x58.png 64w\" sizes=\"(max-width: 425px) 100vw, 425px\" \/><\/a><\/li><li>Remplacez tous les fichiers associ\u00e9s \u00e0 Edge\/Internet Explorer\/Chrome par Firefox et confirmez les modifications.<\/li><\/ol>\n\n\n\n<p>Outre les param\u00e8tres globaux pour l&rsquo;utilisation courante du syst\u00e8me (navigateur par d\u00e9faut, client de messagerie, calendrier, etc.), il existe \u00e9galement des associations de fichiers.<\/p>\n\n\n\n<p>Vous pouvez associer certains programmes \u00e0 certaines extensions de fichiers et ils seront, par d\u00e9faut, accessibles uniquement avec ce programme. Dans ce cas, vous pouvez attribuer toutes les extensions pertinentes \u00e0 Firefox.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"5\">5. R\u00e9installez Firefox<\/h3>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/sites\/3\/2021\/04\/Firefox.jpg\"><img decoding=\"async\" width=\"935\" height=\"400\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/sites\/3\/2021\/04\/Firefox.jpg\" alt=\"\" class=\"wp-image-8296\" srcset=\"https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Firefox.jpg 935w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Firefox-330x141.jpg 330w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Firefox-120x51.jpg 120w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Firefox-140x60.jpg 140w, https:\/\/windowsreport.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/Firefox-64x27.jpg 64w\" sizes=\"(max-width: 935px) 100vw, 935px\" \/><\/a><\/figure><\/div>\n\n\n\n<p>Enfin, la r\u00e9installation pourrait \u00e9galement aider lorsqu&rsquo;il est impossible de mettre Firefox comme navigateur par d\u00e9faut Windows 10. <\/p>\n\n\n\n<p>Comme nous l&rsquo;avons d\u00e9j\u00e0 expliqu\u00e9, le syst\u00e8me cr\u00e9e l&rsquo;entr\u00e9e de registre lorsque Firefox est install\u00e9. Cependant, si l&rsquo;installation est corrompue ou incompl\u00e8te, Firefox se pourra pas \u00eatre reconnu comme navigateur pertinent.<\/p>\n\n\n\n<p>C&rsquo;est pourquoi vous devez le r\u00e9installer et apr\u00e8s l&rsquo;avoir configur\u00e9, v\u00e9rifiez \u00e0 nouveau la section <em>Applications par d\u00e9faut.<\/em> Nous vous sugg\u00e9rons d&rsquo;<a href=\"https:\/\/www.mozilla.org\/fr\/firefox\/new\/\" target=\"_blank\" rel=\"noreferrer noopener\">installer Firefox<\/a> dans une architecture correspondante \u00e0 votre syst\u00e8me.<\/p>\n\n\n\n<p>Voici donc nos astuces simples et rapides pour pouvoir d\u00e9finir Firefox comme navigateur par d\u00e9faut Windows 10. Si vous avez une solution alternative, n&rsquo;h\u00e9sitez pas \u00e0 partager votre exp\u00e9rience avec nous via la section des commentaires ci-dessous.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La possibilit\u00e9 de d\u00e9finir Firefox comme navigateur par d\u00e9faut Windows 10 devrait \u00eatre implicite. Mais les choses ne se passent pas comme \u00e7a en&nbsp;r\u00e9alit\u00e9. M\u00eame si Microsoft fait de son mieux pour promouvoir Edge, la majorit\u00e9 des utilisateurs sont assez satisfaits de ce que Chrome et Firefox ont \u00e0 offrir. En th\u00e9orie, vous devriez pouvoir [&hellip;]<\/p>\n","protected":false},"author":252,"featured_media":8522,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_enabled_clarity":"","footnotes":""},"categories":[1019],"tags":[10456,10461],"work":[10860,10861,10862],"class_list":["post-8517","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutoriels","tag-erreur-navigateur","tag-mozilla-firefox","work-exclude-first-cta","work-exclude-last-cta","work-exclude-mid-cta"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>D\u00e9finir Firefox comme navigateur par d\u00e9faut Windows 10<\/title>\n<meta name=\"description\" content=\"Si Windows 10 ne vous permet pas de d\u00e9finir Firefox comme navigateur par d\u00e9faut, ajustez un peu les 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