Андрей Смирнов
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Change Mozilla Firefox language settings

We are going to discuss in this article about everything related to Firefox language settings and language packs add-ons. On Mozilla Firefox, switching the language using settings option will only change the preferred language of the page. To change the language of menus, toolbars, and other interface elements, you need to download and install the language packs.

Suppose, you aren’t happy with the default language or you might want to show your multilingual talents. If for whatever reason, you want to change the default language on Firefox then you can change it on all platforms like Windows, iOS, and Mac.

In this post, we have explained 3 ways to change the Firefox language and also, we have created a table of contents below, so you can easily locate them.

Table of Contents

Method 1: Changing the language display of Mozilla Firefox

In the first method we will show you how to set the preferred language of the page or change your web browsing language settings in Mozilla Firefox then follow the steps given below:

Step 1: First, you need to open your Firefox browser on your computer.

Step 2: Click on the Menu button (three lines) on the top right corner of the screen. After this small new window will pop up, choose the Options from the list.

Step 3: In the General preferences, scroll down and look for Language and Appearance. Click on the Choose button under Language.

Step 5: On the next window, you can see your current languages. Click on “select a language to add”.

Step 6: In the popup window, choose the preferred language from the list and click on the Add button. Once you did, click Ok. Now restart your browser to see your language preferences working.

Now your new language is added to the list. To change the language preference for displaying these web pages, use the up or down buttons to move the preference.

Method 2: Firefox interface in other languages with language packs

In the second method, we will show you how to change the language of the menu bar. In other words, we can say how to change the interface language of Mozilla Firefox. To do so, follow the steps given below:

Download Dictionaries & language packs for Firefox

1 Visit the Mozilla Dictionaries & Language Packs page.

2 Now, you can see the list of language packs and dictionary add-on. In the list, find the language you want to add and tap or click the Language Pack link.

3 On the next screen, click the “Add to Firefox” button. Click Add in the popup window and confirm.

After the language pack has been added to your Firefox. You need to enable the new language and make Firefox browser use it for its user interface. To do so, follow the steps given below:

Changing the language of the user interface

1 Open a new tab in your browser. Type about:config in its address bar and press enter.

2. In this window, the warning page may appear “This might void your warranty”. Click or tap the blue button “I accept the risk!

3 Type intl.locale.requested in the Search field. Double-click on intl.locale.requested and Firefox opens a new window in which you may see the language code written there. You need to just enter the new language code (in place of old language code) that you want to use.

4 Once you did, close your Mozilla Firefox browser and restart it.

If you want to see the list of all the language codes then visit: Mozilla Web Localization Dashboard.

Note: if you do not find the “intl.locale.requested” file under “about:config” tab then you have to add it manually. To add a new preference, right-click anywhere on the list. In the context menu select New and then String.

Method 3: Download Firefox directly in your language

Download-Firefox-directly-in-your-language.png

If you do not already have Mozilla Firefox installed then you can download it directly in your language. Mozilla Firefox offers it in (approx.) 90 languages for Mac OS, Linux, Windows Pc’s. You need to just download it an install on your computer. To download Firefox in your language visit the official Mozilla Firefox website.

We hope you now know How to change your name on Gmail. A few other posts that you might be interested in: How to Import Gmail contacts to Outlook and How to Enable Gmail Desktop Notifications.

If you are not a native English speaker, you might want to use apps in your language. That includes any software, starting from your operating system to your favorite Office productivity suite and your primary web browser. If your browser of choice is Mozilla Firefox and you do not know how to change its user interface language, then you should read this guide. We show you two ways to get Firefox working in any language that you want:

NOTE: We assume that you already have Mozilla Firefox installed but it is not in the language that you want.

1. Download Mozilla Firefox in your language

The first and probably the easiest method to use Mozilla Firefox is to download it directly in your language and install it on top of the existing Firefox installation. To do that, visit this official Firefox website: Download Firefox in your language. It looks like this:

On this website, you can download Firefox in any of the 90 languages that it supports. To do so, enter the name of the language you want in the «Search languages» field, or scroll until you find it in the list beneath it.

After you find the language that you want, look on its right side. There, you have a series of links for Firefox, all in that language, but for different operating systems. Click or tap on the one that matches your operating system and its version (64-bit or 32-bit), and the download starts. For example, we want Firefox to use Romanian as display language, and we are using Windows 10 64-bit, so we have to download the Romanian Windows 64-bit version of Firefox.

NOTE: If you do not know what version of Windows you have, this guide can help you figure it out: What version of Windows do I have installed?.

Once you download the Firefox installer file, run it and follow the steps of the install wizard. In the end, you should have a fully functional Firefox that displays its user interface in the language that you chose.

2. Download a language pack for Mozilla Firefox’s user interface and enable it in its settings

Another method that works just as well and which some people might prefer is to download, install and enable a language pack for their Mozilla Firefox browser. Open Firefox and visit this website: Firefox Add-ons — Dictionaries and Language Packs. It looks like this:

On it, there is a long list with all the languages in which Firefox’s interface can be used. Scroll down until you find the one you want, and then click or tap the Language Pack link to its right.

The previous action takes you to that language pack’s webpage. On it, click or tap the «+ Add to Firefox» button.

Firefox now asks if you want to add that language pack (add-on) to Firefox. Click or tap Add to continue.

After the language pack has been added to your Firefox, click or tap on OK to close the dialog.

Now, all it remains for us to do is to enable the new language and make Firefox use it for its user interface.

To do so, open a new tab and type about:config in its address bar. Then press Enter on your keyboard.

Firefox might show a warning that «This might void your warranty!» because you are about to change advanced settings. This warning may not be in English, but in a different language, depending on what you have installed on your PC. Click or tap «I accept the risk!» or the only blue button that you see.

Firefox shows you a long list with advanced settings that you can change. It looks like this:

In the Search field at the top, type intl.locale.requested or copy and paste this text. This filters the list of settings and should show only one setting, named intl.locale.requested. Double-click or double-tap on it and Firefox opens a small window in which the current display language code is shown. For example, if Firefox is now using US English, you should see en-us.

Delete the current language code and, in its place, type the code of the language pack that you want to switch to. Then, click or tap on OK. For example, we want Firefox to use Romanian as a display language, and its code is ro. So, we have to type ro and press OK.

If you do not know the code for the language pack that you have installed and wanted to activate, you can find the list of all the language codes here: Mozilla Web Localization Dashboard.

Once you entered the language code and pressed OK, all that remains for you to do is close Firefox completely (all its windows) and restart it. When you restart it, Firefox is using the new display language.

What to do if you do not find the «intl.locale.requested» setting in the «about:config» tab

There are situations that we also stumbled upon, in which Firefox does not show you anything when you are searching for the intl.locale.requested setting in the about:config tab. We know for sure that this happens in the last version of Firefox that we used: Firefox 61 (64-bit).

However, that does not mean that you cannot use this method to change the display language. There is, however, an additional step that you must perform, and that is to create the intl.locale.requested setting yourself. In the about:config tab, right-click anywhere in the list of settings (or on any setting), and you should see a small contextual menu. In it, click or tap on New and then String. If Firefox is in a language that you do not understand, click the only option with an arrow on its right (it is the fifth when going from top to bottom), and then in the submenu that opens, choose the first value from the top. This is always the equivalent of choosing New and then String.

In the «New string value» window, type intl.locale.requested, and then press OK.

Firefox then asks you to «Enter string value.» Type the language code for the language pack that you installed previously and which you want Firefox to use to display the user interface.

Click or tap OK and restart Firefox. Then, your favorite web browser displays its user interface in the new language that you installed and enabled.

Did you switch the interface language for Mozilla Firefox?

These are the two ways that we know for changing the language used by Firefox to display its user interface. Do you know others too? Did you find it easy to change Firefox’s display language? Share your thoughts, opinions or questions, in the comments section below.

If you have ever wanted to change or adjust your web browsing language settings in Mozilla Firefox then this guide will show you how. Did you know that you can have more than one language preference in Firefox? You can also have several languages in order of your own preference too.

Watch the video above or follow the text guide below.

How to change web browser language settings in Mozilla Firefox

  1. Open Mozilla Firefox
  2. Click Firefox Settingsmozilla-firefox-settings-icon-2014.png at the top-right of your browser window (older versions click the Tools menu) and click on the Options menu item
  3. The Options window will now be open
  4. Click on the Content icon at the top of the Option window
  5. Under the Languages heading, click the Choose button
  6. You should now see your current language(s) in order of preference from top to bottom
  7. To add a language: click the Select a language to add.. drop-down list button, Select a language, and click the Add button
  8. To change the order of preferred language(s): Select a language, then click the Move Up or Move Down buttons to change the order
  9. To remove a language: Select the language and click the Remove button
  10. When you have finished choosing your languages, click on OK to Languages window, then X Close the Options window
  11. Now refresh the web-page (preferably Google.com) to see your language preferences working

Используемые источники:

  • https://bleakton.com/change-firefox-language/
  • https://www.digitalcitizen.life/how-change-interface-language-mozilla-firefox
  • https://pchelp.ricmedia.com/change-mozilla-firefox-language-settings/

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