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How can I change the language of Firefox?

Posted

I am using Firefox 11.0 in Spanish. I would like to change this to English. Can I do this without uninstalling my browser? I don't want to lose my bookmarks and settings.

Thank you for your help.

Chosen solution

I've never tried that myself.

This thread has information on how to switch the language to English, and also about an add-on to switch between two languages: How do I change the browser language in Firefox 4?.

Before making any changes, I recommend backing up your Firefox settings in case something goes wrong. See Backing up your information. (You can copy your entire Firefox profile folder somewhere outside of the Mozilla folder.)

Hopefully someone with more experience will offer more tips.

Read this answer in context 1

Additional System Details

Installed Plug-ins

  • Google Update
  • Version 2.7.6.6619
  • Google Talk Plugin Video Accelerator version:0.1.44.15
  • Shockwave Flash 11.1 r102
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.2
  • Winamp Application Detector
  • 5.0.61118.0
  • GEPlugin
  • Next Generation Java Plug-in 1.6.0_26 for Mozilla browsers
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Picasa plugin
  • DivX Web Player version 2.1.1.94
  • DivX VOD Helper Plug-in
  • The plug-in allows you to open and edit files using Microsoft Office applications
  • Adobe Shockwave for Director Netscape plug-in, version 11.5
  • Office Authorization plug-in for NPAPI browsers
  • np-mswmp

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; rv:11.0) Gecko/20100101 Firefox/11.0

More Information

Configuración básica de la aplicación
Nombre
Firefox
Versión
11.0
Agente de usuario
Mozilla/5.0 (Windows NT 6.1; rv:11.0) Gecko/20100101 Firefox/11.0
Directorio de perfil
Abrir la carpeta que lo contiene
Plugins activados
about:plugins
Configuración de compilación
about:buildconfig
Informes de fallos
about:crashes
Uso de memoria
about:memory
Extensiones
Nombre
Versión
Activada
ID
Adblock Plus
2.0.3
true
{d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}
LEC Translation Toolbar
1.1
true
LECToolbar@lec.txt
<video> de HTML5 de DivX Plus Web Player
2.1.1.94
false
{23fcfd51-4958-4f00-80a3-ae97e717ed8b}
DivX HiQ
2.1.1.94
false
{6904342A-8307-11DF-A508-4AE2DFD72085}
Skype Click to Call
5.6.0.8442
false
{82AF8DCA-6DE9-405D-BD5E-43525BDAD38A}
Preferencias modificadas
Nombre
Valor
accessibility.typeaheadfind.casesensitive
1
accessibility.typeaheadfind.flashBar
0
browser.display.background_color
#C0C0C0
browser.display.use_system_colors
true
browser.places.smartBookmarksVersion
2
browser.startup.homepage
http://www.google.nl/ig
browser.startup.homepage_override.buildID
20120312181643
browser.startup.homepage_override.mstone
rv:11.0
browser.tabs.warnOnClose
false
extensions.lastAppVersion
11.0
gfx.blacklist.direct2d
3
gfx.blacklist.layers.direct3d10
3
gfx.blacklist.layers.direct3d10-1
3
gfx.blacklist.layers.opengl
5
gfx.blacklist.webgl.opengl
5
network.cookie.prefsMigrated
true
places.database.lastMaintenance
1332294188
places.history.expiration.transient_current_max_pages
53425
places.history.expiration.transient_optimal_database_size
85478604
privacy.sanitize.migrateFx3Prefs
true
security.warn_viewing_mixed
false
Gráficos
Descripción del adaptador
Mobile Intel(R) 965 Express Chipset Family
ID del fabricante
8086
ID del dispositivo
2a02
RAM del adaptador
Unknown
Controladores del adaptador
igdumdx32 igd10umd32
Versión del controlador
8.15.10.1930
Fecha del controlador
9-23-2009
Direct2D activado
Bloqueado para la versión de su controlador gráfico.
DirectWrite activado
false (6.1.7601.17514)
Parámetros de ClearType
Parámetros de ClearType no encontrados
Renderizador WebGL
Google Inc. -- ANGLE (Mobile Intel(R) 965 Express Chipset Family) -- OpenGL ES 2.0 (ANGLE 1.0.0.930)
Ventanas aceleradas mediante GPU
1/1 Direct3D 9

jscher2000
  • Top 10 Contributor
2357 solutions 20872 answers

Chosen Solution

I've never tried that myself.

This thread has information on how to switch the language to English, and also about an add-on to switch between two languages: How do I change the browser language in Firefox 4?.

Before making any changes, I recommend backing up your Firefox settings in case something goes wrong. See Backing up your information. (You can copy your entire Firefox profile folder somewhere outside of the Mozilla folder.)

Hopefully someone with more experience will offer more tips.

cor-el
  • Top 10 Contributor
  • Moderator
10748 solutions 96724 answers

Helpful Reply

It is best to uninstall the current Firefox version to remove the Spanish language pack and install the en-US (or en-GB) version instead.

You can find the latest Firefox release in all languages and for all Operating Systems here:

Do NOT remove personal data when you uninstall the current version or you lose your bookmarks and other data because all profile folders will be removed.

Your bookmarks and other profile data are stored elsewhere in the Firefox Profile Folder and won't be affected by a reinstall, but make sure that you do not select to remove personal data if you uninstall Firefox.


Question owner

@Jscher2000 Thanks for your quick response. I have just backed up my FF profile and I am going to uninstall my current browser now and reinstall the English version.

Modified by moondog

Question owner

I just installed the GB English version, and I didn't even have to use my backed up data. Probably because I unchecked the "delete personal data" option in the uninstall manager.

cor-el
  • Top 10 Contributor
  • Moderator
10748 solutions 96724 answers

Be aware that the en-GB version doesn't come with a spell check dictionary, so you need to install an English dictionary yourself if you currently do not one.

You can look here for dictionaries:

Question owner

To be honest, on my desktop pc I use the Dutch version of Firefox and I have switched off the spell check there, cause I found it a bit annoying. But thanks for the tip.