Sounds like an issue with fonts.

Type about:preferences#content<enter> in the address bar. Across from fonts and colors, press the Advanced button. On the bottom, turn on Allow Web Sites To Choose Their Own.

Fonts Information - Detected via Flash http://browserspy.dk/fonts-flash.php?detail=1

FredMcD Thank you for your solution. Allow Web Sites To Choose Their Own setting is already on by default but that didn't work. I had already tried on and off with above setting. Is there any other solution for this? Thanks.

I called for more help. Did you check out the fonts link?

What font is Firefox trying to use if you check this in the Font Inspector?

You can right-click and select "Inspect Element" to open the builtin Inspector with this element selected.

• "3-bar" menu button or Tools -> Web Developer
• https://developer.mozilla.org/en-US/Tools/Page_Inspector

You can check the font used for selected text in the Font tab in the right pane of the Inspector.

Note that this is not about the font-family CSS rule, but about the font that Firefox actually uses as shown in the Font tab.

• https://developer.mozilla.org/en-US/Tools/Page_Inspector/How_to/View_fonts

Hi cor-el

I uploaded image for Inspector window. Can you check and suggest for the solution?

You need to right-click in an area where you see the boxed characters to open the Inspector with this element selected. The screenshot shows the font used by default in the HTML tag. So could you provide anther screenshot.

It is displaying like this.See the image.

Japanese font <title> tag is displaying correctly and not in body part. Is there any suggestion with this?

FredMcD said

I called for more help. Did you check out the fonts link?

cor-el said

You need to right-click in an area where you see the boxed characters to open the Inspector with this element selected. The screenshot shows the font used by default in the HTML tag. So could you provide anther screenshot.

Hi cor-el Is there any suggestion with the image I uploaded?

That screenshot shows that Firefox is using the Arial font. I don't know if that font includes Japanese glyphs, but if it isn't working then I assume that the answer is 'no'.

The website specifies this font-family for the body if I check this in the Inspector, so Arial is part of the list:

body {
	font-family: MS PGothic,Arial,Hiragino Kaku Gothic ProN,Osaka,sans-serif;
	line-height: 1.22;
}

For me Firefox uses Droid Sans Japanese on Linux.

cor-el said

That screenshot shows that Firefox is using the Arial font. I don't know if that font includes Japanese glyphs, but if it isn't working then I assume that the answer is 'no'. The website specifies this font-family for the body if I check this in the Inspector, so Arial is part of the list:

body {
	font-family: MS PGothic,Arial,Hiragino Kaku Gothic ProN,Osaka,sans-serif;
	line-height: 1.22;
}

For me Firefox uses Droid Sans Japanese on Linux.

Thank you taking your time for this. Is this problem in the Firefox or OS? Japanese is displaying correctly in Chrome,IE and other software like outlook. What is the difference between Firefox and other browsers? Is there any setting to display Japanese in Firefox if font is not detected automatically? Is there any other ways to find out the problem? Can you suggest all possible solution to solve this problem ?

What font(s) are the other browsers using for the Japanese text?

cor-el said

What font(s) are the other browsers using for the Japanese text?

I uploaded images for Chrome and IE setting. Can you take a look at that?

Hi cor-el Can you check the browser setting from my uploaded images? Is there any suggestion for that?

Have your windows the font "MS PGothic" installed ? I get the version 60.5.1 on Windows 10 and its works fine.

AndRo Marian said

Have your windows the font "MS PGothic" installed ? I get the version 60.5.1 on Windows 10 and its works fine.

Yes, "MS PGothic" is installed in my windows. By the way, my windows is 7 32bit.

FredMcD said

I called for more help. Did you check out the fonts link?

Hi FredMcD

Unfortunately, I can't check out the fonts link for security reasons. I uploaded captured images of font list. Can you check and suggest any solution?

Japanese fonts are already installed in my computer but why can't I see in Firefox? Which setting should I change in Firefox to display Japanese font correctly? Does anyone has a solution with this problem?

It is possible that Firefox has a problem with the number of fonts you have installed or that some font cause problems.

Do other (CJK) Unicode blocks that should work display properly?

• https://en.wikipedia.org/wiki/Category:Unicode_blocks

cor-el said

It is possible that Firefox has a problem with the number of fonts you have installed or that some font cause problems. Do other (CJK) Unicode blocks that should work display properly?

• https://en.wikipedia.org/wiki/Category:Unicode_blocks

Sorry, I don't know how to check other (CJK) Unicode blocks display properly. Can you tell me how?