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Firefox recently changed my primary language on ALL WEBSITES from English to French. I've tried to reset default language to English using Options>Language but it doesn't make the change. I've refreshed Firefox. I've removed both French and English as primary language and then chosen English again. Nothing works. Thanks for assistance.

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That is strange! If you could check about mid-way down the following page, what does your "Internationalization & Localization" list look like? I'll paste mine for comparison:

  • "3-bar" menu button > "?" Help > Troubleshooting Information
  • (menu bar) Help > Troubleshooting Information
  • type or paste about:support in the address bar and press Enter

Internationalization & Localization Application Settings Requested Locales ["en-US"] Available Locales ["en-US"] App Locales ["en-US"] Regional Preferences ["en-US"] Default Locale "en-US" Operating System System Locales ["en-US"] Regional Preferences ["en-US"]

Kind of boring, I realize...

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Quote: I've removed both French and English as primary language

Normally it wouldn't be possible to remove the language of the current Firefox locale (user interface language), so where/how are you making these changes ?

The setting in Options/Preferences is about the language for the user interface and the preferred language for webpages.


Are you possibly using a VPN or proxy with an exit node in a French speaking country ?

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To JScher2000: You refer to "following page" but I don't see it. Would you pls. clarify?

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This is about the "Help -> Troubleshooting Information" (about:support) page.

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To JScher2000--sorry. I was confused for a second but found the page. Here is it is.

pplication Settings Requested Locales ["en-US"] Available Locales ["en-US"] App Locales ["en-US"] Regional Preferences ["en-US"] Default Locale "en-US" Operating System System Locales ["en-US","en-BB"] Regional Preferences ["en-US"]

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Thanks. Just to double-check on the Options page setting, because the buttons seem to have been rearranged, your Webpage language settings have English first:

Assuming so, there's no obvious reason for you to be getting pages in French unless, as cor-el suggests, sites are serving French because of what they perceive as your location based on your IP address.

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The change from English to French happened just recently with no input from me. No change in IP address or other obvious factors. If the settings are as you would expect and there is no IP address change, am I just stuck?

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If you check a site that reports on your location, does it match what you expect for your connection? For example: https://www.iplocation.net/

If you check a site that shows you the HTTP Requeset Headers sent by the browser, such as my page at https://jeffersonscher.com/res/jstest.php what does it show for "Accept-Language"?

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As to location, yes, it matches correctly

Regarding Accept Language--this is what I get. Not sure what to do.

Full HTTP Request Headers: Host: jeffersonscher.com User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:87.0) Gecko/20100101 Firefox/87.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 dnt: 1 Referer: https://support.mozilla.org/ upgrade-insecure-requests: 1 te: trailers Accept-Encoding: br, gzip, deflate

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In Firefox I typed in "request headers" and it pulled up this French language page. https://developer.mozilla.org/fr/docs/Web/HTTP/Headers

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Hmm, why is Accept-Language missing from the headers?

I updated the second section of the page to check for the languages in a way scripts might check, either:

  • navigator.languages = en-US, en
  • navigator.language = en-US

Does that show up with fr ?

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larrykirsch said

In Firefox I typed in "request headers" and it pulled up this French language page. https://developer.mozilla.org/fr/docs/Web/HTTP/Headers

That was a search result on Google, Bing, DuckDuckGo, Yahoo, or whatever site you normally search on?

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This is what I got on French language version of Firefox

Full HTTP Request Headers: Host: www.jeffersonscher.com User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:87.0) Gecko/20100101 Firefox/87.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 Referer: https://www.google.com/ dnt: 1 upgrade-insecure-requests: 1 te: trailers Accept-Encoding: br, gzip, deflate

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Could you scroll down to the next section where everything starts with "navigator" and check for navigator.language(s) there.

Also, when you searched for request headers in the address bar, did you get a page of search results or did your Firefox go directly to French Wikipedia?

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Search for headers in address bar, French version. This is the first result that appears. https://developer.mozilla.org/fr/docs/Web/HTTP/Headers

On your site (using Firefox--french version) avigator.userAgent = Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:87.0) Gecko/20100101 Firefox/87.0 navigator.appName = Netscape navigator.appCodeName = Mozilla navigator.appVersion = 5.0 (Windows) navigator.platform = Win32 navigator.product = Gecko navigator.productSub = 20100101 navigator.buildID = 20181001000000 navigator.oscpu = Windows NT 10.0; Win64; x64 navigator.hardwareConcurrency = 8 navigator.languages = en-US navigator.cookieEnabled = true navigator.doNotTrack = 1

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larrykirsch said

Search for headers in address bar, French version. This is the first result that appears. https://developer.mozilla.org/fr/docs/Web/HTTP/Headers

I thought you had the U.S. English version of Firefox, judging from the information here: https://support.mozilla.org/en-US/questions/1331467#answer-1402911

So why is the search engine suggesting French websites -- where it is getting the hint that you prefer French language pages?

Does the address of the results page (in the address bar) mention a language preference? For example, on Google this might be indicated as the "hl" parameter. Otherwise, could it be a setting in the search engine itself? For example, on Google, it's set here: https://www.google.com/preferences#languages

On your site (using Firefox--french version) avigator.userAgent = Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:87.0) Gecko/20100101 Firefox/87.0 navigator.appName = Netscape navigator.appCodeName = Mozilla navigator.appVersion = 5.0 (Windows) navigator.platform = Win32 navigator.product = Gecko navigator.productSub = 20100101 navigator.buildID = 20181001000000 navigator.oscpu = Windows NT 10.0; Win64; x64 navigator.hardwareConcurrency = 8 navigator.languages = en-US navigator.cookieEnabled = true navigator.doNotTrack = 1

That looks like what I would expect if your language preference is set to U.S. English.

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You say: "I thought you had the US English version". I'm confused. Can we make sure we're on the same page? I have used the US Version for years and want to continue with that Version. I never changed to the French version. Nevertheless, for some reason FF loads the French Version (instead of US) by default. I typed https://www.google.com/preferences#languages --in the address bar and it loads the French Version. (I've tried many times to select US English but it doesn't want to cooperate with me. That's the essence of the problem. I CAN'T GET FF TO LOAD THE US ENGLISH VERSION AS MY DEFAULT.

You ASK: Does the address of the results page (in the address bar) mention a language preference? For example, on Google this might be indicated as the "hl" parameter. Otherwise, could it be a setting in the search engine itself? For example, on Google, it's set here: https://www.google.com/preferences#languages

I answered this in my last reply: On the French Version, it shows navigator.languages = en-US

Nevertheless, the Version shown on my screen is the French Version.

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In address bar, I typed:

https://www.google.com/search?client=firefox-b-1-d&q=mark+fox

This is what loads (plus more)

Tous Actualités Images Vidéos Shopping Plus Paramètres Outils

Environ 437 000 000 résultats (0,63 secondes)

Google utilise des cookies pour fournir ses services, personnaliser les annonces et analyser le trafic. Vous pouvez ajuster vos paramètres de confidentialité à tout moment dans les paramètres Google. En savoir plus

MARK FOX https://www.markfoxstudio.com Traduire cette page MARK FOX · Selected Work · Site-Specific Sculpture · Bio · News · Contact.

Mark Fox (basketball) - Wikipedia https://en.wikipedia.org › wiki › Ma... Traduire cette page Mark Leslie Fox (born January 13, 1969) is a men's college basketball coach who is the head coach of the California Golden Bears of the Pac-12 Conference. Record : 22–37 (.373) Team : California ‎Coaching career · ‎Nevada · ‎Georgia

Mark S. Fox - Wikipedia https://en.wikipedia.org › wiki › Ma... Traduire cette page Fox started his academic career at Carnegie Mellon University as Associate Professor of Computer Science and Robotics, where he also headed the Center for ...

Mark Fox: Livres, Biographie, écrits, livres audio ... - Amazon.fr https://www.amazon.fr › Mark-Fox Optical Properties of Solids 2/e (Oxford Master Series in Physics) by Mark Fox (2010-03-25). Relié. Optical Properties of Solids (Oxford Master Series in Physics ...

Mark Fox : Livres - Amazon.fr https://www.amazon.fr › Livres-Mark-Fox › rh=n:3010... de Mark Connelly, Prof Jo Fox, et al. | 26 novembre 2020. Broché · 35,70 €35,70€. Livraison à 0,01€ par Amazon. Temporairement en rupture de stock.

Mark Fox | Henri SELMER Paris https://www.selmer.fr › artiste › mark-fox Mark Fox, saxophone ténor et soprano et joueur de kamal / donso ngoni (harpe malienne), chef d'orchestre, auteur, compositeur, artiste-interprète et producteur, ...

Mark Fox - Men's Basketball Coach - University of California ... https://calbears.com › roster › coaches Traduire cette page Mark Fox, a veteran coach who guided teams at Nevada and Georgia to multiple postseason berths during the course of his career, was named head men's ...

Mark Fox | De Boeck Supérieur https://www.deboecksuperieur.com › auteur › mark-fox Mark Fox. 1re édition | 2011 | 408 pages | 9782804107871. Un outil unique et très abordable pour pénétrer le monde fascinant de la lumière quantique et de ...

Mark Fox : tous les produits | fnac https://www.fnac.com › Mark-Fox Mark Fox (Auteur). Spiritual Encounters with Unusual Light Phenomena: Lightforms is a study of unusual light phenomena based on almost four hundred ...

Professor Mark Fox | Physics and Astronomy | The University ... https://www.sheffield.ac.uk › people Traduire cette page Professor Mark Fox. Department of Physics and Astronomy. Professor of Optical Physics. Professor Mark Fox. mark.fox@sheffield.ac.uk · +44 114 22 24527. Certains résultats peuvent avoir été supprimés conformément à la loi européenne sur la protection des données. En savoir plus 1 2

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Suivant Résultat de recherche d'images pour "mark fox" Résultat de recherche d'images pour "mark fox" Résultat de recherche d'images pour "mark fox" Résultat de recherche d'images pour "mark fox" Résultat de recherche d'images pour "mark fox" Plus d'images Mark Fox Entraîneur de basket-ball Traduit de l'anglais-Mark Leslie Fox est un entraîneur de basketball universitaire masculin qui est l'entraîneur-chef des Golden Bears de Californie de la Conférence Pac-12. Il a passé neuf saisons comme entraîneur-chef des Bulldogs de Géorgie. Wikipédia (anglais) Afficher la description d'origine Date/Lieu de naissance : 13 janvier 1969 (Âge: 52 ans), Salina, Kansas, États-Unis Enregistrement : 22–37 (.373) Épouse : Cindy Fox Équipe : California Golden Bears men's basketball Équipes entraînées : California Golden Bears men's basketball (Entraîneur principal, depuis 2019), PLUS Enfants : Parker Fox, Olivia Fox

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Just a recap:

You have the en-US Firefox version and have an English Firefox user interface ?

If you open a website like Google then you get pages in French ?


Boot the computer in Windows Safe Mode with network support to see if that has effect.

You can do a malware scan just to be sure.

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After all of the time spent on unsuccessful troubleshooting (THANKS ANYWAY) I decided enough was enough and so I unstilled FF and reinstalled a new US English version. GUESS WHAT--It launched in French Version. There's something very wrong and it seemed to me we were just going round in circles. Unless someone really has a good new idea, I'll have to change my default browser--something I won't take lightly or be happy with.

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