Firefox is not displaying some fonts

Since I upgraded my mac to the new imac and to OS 10.6 I have been having problems with fonts on Firefox. Most of them do not display. In fact, I am sending this message on Safari because Firefox only showed the login, not the ask new question page. I also get messages asking me if I want certain fonts to be used by Firefox on one of my partitions in an external drive. Every thing works fine on Safari.

You can do a check for corrupted fonts and other font issues:
* http://www.creativetechs.com/iq/garbled_fonts_troubleshooting_guide.html - CreativeTechs Tips: Garbled Fonts Troubleshooting Guide
* http://www.thexlab.com/faqs/multipleappsquit.html - Font Book 2.0 Help: Checking for damaged fonts
See also:
* http://forums.mozillazine.org/viewtopic.php?f=38&t=1461325 - snow leopard fonts (restart the font server)
*[/tiki-view_forum_thread.php?forumId=1&comments_parentId=625704]
*[https://bugzilla.mozilla.org/show_bug.cgi?id=567552 Bug 567552] - Fonts on External drive are activated by Firefox, and preference to not ask again is ignored

Similar Messages

Used windows update, installed 8 updates, FireFox does not display some websites and images correctly.

Hello,
Windows update installed 8 updates to my computer and now several websites are not displaying images or text correctly. Some forum looks like they were loaded in an extreme basic mode, another forum main page looks fine but sub forums are loaded in in the same basic looking mode, another forum only displayed 1 user avatar out of hundreds.
Chat/IRC clients wont load.
Everything works when I used IE.
I tried to follow the help thingies but was led to a dead link.
http://support.mozilla.com/en-US/kb/Firefox%20cannot%20load%20websites%20but%20other%20programs%24%20can
Anybody have any ideas?

If you have increased the minimum font size then try the default setting "none" as a high value can cause issues like you described.
* Tools > Options > Content : Fonts & Colors > Advanced > Minimum Font Size (none)
*Tools > Options > Content : Fonts & Colors > Advanced > [X] "Allow pages to choose their own fonts, instead of my selections above"
Reset the page zoom on pages that cause problems: View > Zoom > Reset (Ctrl+0 (zero); Cmd+0 on Mac)
*http://kb.mozillazine.org/Zoom_text_of_web_pages
You can use one of these extensions to set a default font size and page zoom on web pages:
*Default FullZoom Level: https://addons.mozilla.org/firefox/addon/default-fullzoom-level/
*NoSquint: https://addons.mozilla.org/firefox/addon/nosquint/

Firefox is not displaying some headers, forms, options, and features

For example, there is nothing displayed immediately above this box except 2 short vertical lines. However if I rollover the spaces defined by those lines on the left, center and right: I see that the left shows that there is an option for "Italic", the center space "Insert a Link", and the right "Numbered List". None of these are visible unless I rollover those spaces.

Can you attach a [http://en.wikipedia.org/wiki/Screenshot screenshot]?
Use a compressed image type like PNG or JPG to save the screenshot and make sure that you do not exceed the maximum file size (1 MB).
* If you use extensions (Tools > Add-ons > Extension) like Adblock Plus or NoScript or Flash Block that can block content then make sure that such extensions aren't blocking content.
Start Firefox in [[Safe Mode]] to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
* Don't make any changes on the Safe mode start window.
See:
* [[Troubleshooting extensions and themes]]
See also:
* [[Websites look wrong]]
* [[Website colors are wrong]]

Firefox does not display specified font (Helvetica)

I updated Firefox to version 10 this evening, only to find that the font Helvetica no longer seems to display where it should on 90% of web sites. It displays as Arial instead.
It displays fine on other browsers, and even on limited sites in Firefox, however even setting up a test page with just one line of text and the font set to Helvetica via CSS, the font continues to display as Arial.
I've tried the following:
- Changing Helvetica to other fonts; they display correctly
- Tried Helvetica in different sizes; large or small, it doesn't work
Any ideas? Whilst this is a minor issue, as a web designer it's very annoying!
Thanks. :)

Do you have a true type or open type version of the Helvetica font installed?
You can do a font test to see if you can identify corrupted font(s).
*http://browserspy.dk/fonts-flash.php?detail=1

Firefox is not displaying the correct font color on my blog, but other browsers are.

I have a web designer issue. Firefox is not displaying the correct font color on the header in my blog. Explorer, Chrome, and Safari have no problems. The page is in css but this particular section has html code o designate color. The code is as follows:
blog
Though all other browsers display the light orange color designated, Firefox displays white. Strangely, if if retype the code by spelling out a color, Firefox displays it correctly. i.e.
blog
... will give me black. You can see the effect by viewing the link below and looking at the word "blog" in the header, which should be light orange but is not in Firefox.

Actually it also seems to work in the current Firefox 4 beta as it is.
The code is not right though - the correct syntax for the color attribute with hex values is with a # at the start, so:
color="#FF9966"
It might work in Firefox 3.x if you change that.

Not displaying website fonts properly

I asked about this on Reddit: http://www.reddit.com/r/firefox/comments/1o26ar/let_sites_use_their_own_fonts_but_make_exceptions/
Here's a summary: I used custom fonts instead of letting each website display their own. This led to sites like Github not displaying some icons. I enabled the option to let sites use their own fonts, and the icons in Github are fixed, but I have another problem:
http://i.imgur.com/1q1WiEh.png
That is most certainly NOT the website's custom font. It's HelveticaNeue-LightExt for some reason.Reddit suggested I use a script with Greasemonkey, but I like to keep my addons at the necessary minimum, and I know there's something weird going on here. If I use another profile, such as with Tor, the sites display just fine. In fact the first time I tested it with Tor, I restarted my regular Aurora session and the websites displayed proper fonts. A few minutes later, and for no apparent reason, they were back to HelveticaNeue.
Basically, I want to let sites display their custom fonts properly, without the need of an add on, and without losing my current profile.

Troubleshooting
How to disable extensions and themes
Disabling an extension or theme will turn it off without removing it:
At the top of the Firefox window, click on the Firefox button, and then click Add-ons. The Add-ons Manager tab will open.
In the Add-ons Manager tab, select the Extensions or Appearance panel.
Select the add-on you wish to disable.
Click its Disable button.
Click Restart now if it pops up. Your tabs will be saved and restored after the restart.
To re-enable the add-on, find it in the list of Add-ons and click Enable, then restart Firefox if required.
How to disable plugins
Disabling a plugin will turn it off without removing it:
At the top of the Firefox window, click on the Firefox button, and then click Add-ons. The Add-ons Manager tab will open.
In the Add-ons Manager tab, select the Plugins panel.
Select the plugin you wish to disable.
Select Never Activate in its drop-down menu.
To re-enable the plugin, find it in the list of Plugins and select Always Activate in its drop-down menu.
How to remove extensions and themes
At the top of the Firefox window, click on the Firefox button, and then click Add-ons. The Add-ons Manager tab will open.
In the Add-ons Manager tab, select the Extensions or Appearance panel.
Select the add-on you wish to remove.
Click the Remove button.
Click Restart now if it pops up. Your tabs will be saved and restored after the restart.
How to uninstall plugins
Most plugins come with their own uninstallation utilities. For help uninstalling a certain plugin, go to the list of plugins articles and select the article for the plugin you want to uninstall.

Firefox will not display on the screen even though with Process Explorer I see Firefox.exe active but no CPU usage

I use Firefox v10.0.2 as default browser on Dell XPS8300 e/w Intel Core i5 & Windows 7 Ultimate and Compaq Presario CQ57 e/w Intel Core i3 & Windows 7 Home. More frequently on the (about 90% of attempts) than the Dell (50% of attempts) Firefox will not display to the screen when I click on icon. When it happens I cannot display other programs. I specifically say display because I believe Firefox has started. To circumvent the problem I installed Process Explorer on both machines and start this program first then click on Firefox icon. When problem occurs I can see Firefox.exe process in Process list; some CPU consumed but, then, no CPU activity. If I click on Firefox icon again another process opens in Process list but with same response - some CPU consumed and then no CPU activity. If I have 2 processes running and kill the 1st process, the 2nd will display and everything from then on is normal. If I do not open a 2nd process but kill the 1st process then click on Firefox icon Firefox is displayed and everything from then on is normal. This problem has occurred since original installation on both new machines. I've updated video drivers in both machines.

Ok, let's see if we can fix this and get it working for you!
First, if you start Firefox in [[safe mode|safe mode]] (restart your computer first, then when you open Firefox, hold down the shift key) does it start up more reliably? This is usually caused by a faulty add-on. If it does help, then restart Firefox, go into the Firefox button, then add-ons, and disable your extensions one by one until you find the trouble maker.
Also, try updating to Firefox 11, it has several bug fixes that might make life easier here.
Just as a few basic troubleshooting steps to make sure we have all the bases covered,
Run all Windows Updates, install all needed service packs, etc.
Update all your plugins (Flash, Java, etc.): [http://www.mozilla.org/plugincheck/ http://www.mozilla.org/plugincheck/].
Download and Install MalwareBytes Anti-Malware, run a full Scan. [http://www.malwarebytes.org/ http://www.malwarebytes.org/]. This helps check that there are no viruses on your computer causing issues. you can uninstall this program after you clean off any infections.

Firefox will not display basic content on certain (common) sites

Hi there:
On certain websites (common) ones Firefox will not display options on the website.
These sites include Yahoo Mail, Twitter, Weebly.
An example would be if there is a menu of choices such as delete, ad, tweet, etc. instead of displaying correctly it looks like a box with 4 dots.
The other browsers are fine. I have the latest Firefox and this started with the previous version as well. I uninstalled/reinstalled without change.
Windows 7 Computer/Norton Anti Virus.
If allowed I can upload a screen shot.
Thank you.

> But I really don't want to allow all sites to use
> their own fonts, just, in this case, Twitter.
Exactly. It's not a very good solution to be forced to give up control/accessibility on every Web site, to fix a problem with just a few popular ones like Twitter.
It seems like a pathetic accessibility fail on the part of Yahoo, Twitter, etc., but since the practice is likely to persist and spread, please, Firefox:
=> allow site-specific configuration of "allow pages to choose their fonts."
Tim McCormick, Palo Alto

Mozilla firefox does not display Notepad++ web programming

mozilla firefox does not display notepad++ programming of web page and does not connect css files. Currntly programs using CSS + html5.

Could you check in the lower right corner of Notepad++ what character encoding is being used for your documents. (See screen shot attached.) Some encodings, particularly UTF-16 encodings, have caused other users problems with external content not loading. It is best to use the same encoding for all of your pages, style sheets, scripts, etc.

Edge running slow/not displaying some items on stage

My project's growing quite large but I'm keeping everything very tidy and importing only small files (tiny PNGs, well compressed short videos, etc) but I've found the file slowing down and now it's not displaying some of my images and symbols.
Also when I now preview in Browser it takes forever to load a page - BUT - if I drag the .html file on my browser it opens and works fine.
Why would it be doing this? Can allocate Edge Animate more memory? I have an 8-core mac with 28GB RAM and plenty of HD space (which should be fine for this)
Thanks
J

Can you attach a [http://en.wikipedia.org/wiki/Screenshot screenshot]?
Use a compressed image type like PNG or JPG to save the screenshot and make sure that you do not exceed the maximum file size (1 MB).
* If you use extensions (Tools > Add-ons > Extension) like Adblock Plus or NoScript or Flash Block that can block content then make sure that such extensions aren't blocking content.
Start Firefox in [[Safe Mode]] to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
* Don't make any changes on the Safe mode start window.
See:
* [[Troubleshooting extensions and themes]]
See also:
* [[Websites look wrong]]
* [[Website colors are wrong]]

Newest firefox does not display aspects of simple html web site correctly

Newest Firefox does not display certain web pages correctly whereas Safari does- previous versions of Firefox worked fine.
The web pages are simple html using bumpers to position photos. Several of these pages allow "see through" in these bumper areas of prior page. It appears that Firefox is not releasing its memory of the prior page. Each of these pages is a specific address and should be loaded as a separate solo page. Please look at html pages 10 and 14 of this site. It seems that the code for these bumpers is not being honored and the persistent memory of the prior page is being intermixed. I cleared the cache and reinstalled Firefox with no change in problem.
Please help.
My business is struggling...
Robert Bell
[email protected]

Hello - thanks for your response!
I reinstalled Firefox 7.0.1 - still have the problem.
Cache was cleared.
I tried restarting in safe mode also with no change.
I reinstalled Firefox 6.0.1 - works fine.
I have attached a screen shot showing the problem on 1 of the pages.
These are simple html pages that use .gif bumpers to help position the photos in some cases but not on all of the site pages. The sample screen shot shows the compound problem - the code for the gif bumpers is not being honored and part of the image from the prior page is showing through - the prior page is not being fully released. Each page is a separate entity with a separate address, so when the new page loads there should be no evidence or visibility of the prior one.
This simple bit of website building should be working on this browser, on this Mac with this OS. Safari works. Firefox 6 works.
Sample problem pages are 10 and 14.
Site is http://www.robertbellphoto.com
Thank you so much!

Updated to the latest revision. Firefox will not display my chosen home page without clicking on home icon.

Since latest update...Firefox will not allow a new page to be opened from a link in a current page. It will allow a new tab to be opened (with tabbed browsing checked) but i prefer a new page. Even in tabbed browsing links to things like a pdf will not work at all.
Firefox WILL NOT close. X-ing out will close the window but I can not get back to Firefox without closing it in task manager.
Firefox will not display my chosen home page without clicking on home icon.

Start Firefox in [[Safe Mode]] to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

Preview.app will not display some PDF files

Since upgrading Yosemite I have found that Preview.app will not display some PDF documents, the documents open but all the pages are blank. This is a big issue as my work involves reviewing documents that are all in the PDF format. Strangely some PDFs work properly but I haven't been able to determine any common factors among the documents that work versus those that don't work. The problem documents do open correctly in Adobe Acrobat Reader but Reader takes over viewing of PDF container fields I have in several important FileMaker Pro 13 databases. Acrobat in the FileMaker databases for me is just as much of a problem as not viewing PDFs in Preview.
After searching the forums I followed suggestion in a post to try using version 7.0 of Preview.app (the version that worked under Mavericks) but that is also showing blank pages. I have noticed that the PDFs which open as blank pages also display that way in Finder and Spotlight previews. Could this mean that I have some kind of OS level issue here and not a Preview.app issue? Perhaps Finder and Spotlight use Preview.app to generate the preview.
I have posted this in a bug report to Apple but in the meantime I would welcome any suggestions or workarounds to try.

The built-in PDF renderer has trouble with that file. You might get better results with Adobe Reader.

Firefox will not display videos since Yosemite migration

Good day!
I run an early 2011 15" MacBook Pro, 2,2 GHz Intel Core i7 with 4g 1333 MHz DDR3 Memory, and an Intel HD Graphics 3000 with 384 Mo. Firefox is 34.0.5.
Since I migrated to Yosemite (10.10.1), the browser I use (Firefox) will not display the videos, but plays the sound out of them...
I tried to clear the PRAM (NVRAM) with the Command (⌘), Option, P, and R, but it doesn't work. I even tried to shut down the graphic acceleration option in Firefox, to no avail...
What else should I do? Any solution out there?
Thanks, and Merry Christmas to you all!
Martin

    System Preferences > Flash Player > Advanced > Delete All
     Press the "Delete All" button.
     Install Adobe Flash Player.
    http://get.adobe.com/flashplayer/
   Download it first.
   The next step is important.
   Click Safari in the menubar and select “Quit Firefox.
    Follow the prompts and install it.
    Restart computer.

Firefox will not display Yahoo Calendar.

Firefox will not display Yahoo Calendar (I have tried on four separate computers).
When I use Internet Explorer, the Yahoo Calendar does display fine.
Do you know why Yahoo Calendar will not display in Firefox? Is there any solution?

Are you using Firefox 3.5? I am not sure whether Yahoo Toolbar still supports it.. Have you considered upgrading to Firefox 3.6.x or Firefox 5.0? :)

Firefox is not displaying some fonts

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