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Firefox isn't accessing some CSS unless manually told to

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Any website I visit, whether for the first time or the ten thousandth, has about a 50/50 chance of rendering without any CSS. Sometimes a site will load fine, but other times it loads as a white page with a long vertical list of links, images and text, all without formatting.

I have searched and searched for solutions to this problem. I disabled all add-ons, ran Firefox in safe mode, reset Firefox, cleared the cache, cleared cookies, made sure the settings allow websites to specify their own colors and fonts. Sometimes doing these things will buy me a little peace; usually not. It's hard to say because each website has such a random chance to mess up.

Normally, I can fix the problem by hitting refresh 1-5 times. Eventually, Firefox retrieves the CSS and everything works. I recently discovered Shift + Ctrl + R for an instant fix. However, I have no way of knowing if that fixed the problem for good for that website, since the next time I visit it, it could be fine or it could mess up again.

Amazingly, I don't think Facebook has ever had this problem for me. Netflix, Gmail, random internet forums, however, all have. There's really no pattern that I can see. The only reason I even know (suspect) it's a problem with the CSS is from all the research into people with similar problems.

Currently, I have NO add-ons running.

Any website I visit, whether for the first time or the ten thousandth, has about a 50/50 chance of rendering without any CSS. Sometimes a site will load fine, but other times it loads as a white page with a long vertical list of links, images and text, all without formatting. I have searched and searched for solutions to this problem. I disabled all add-ons, ran Firefox in safe mode, reset Firefox, cleared the cache, cleared cookies, made sure the settings allow websites to specify their own colors and fonts. Sometimes doing these things will buy me a little peace; usually not. It's hard to say because each website has such a random chance to mess up. Normally, I can fix the problem by hitting refresh 1-5 times. Eventually, Firefox retrieves the CSS and everything works. I recently discovered Shift + Ctrl + R for an instant fix. However, I have no way of knowing if that fixed the problem for good for that website, since the next time I visit it, it could be fine or it could mess up again. Amazingly, I don't think Facebook has ever had this problem for me. Netflix, Gmail, random internet forums, however, all have. There's really no pattern that I can see. The only reason I even know (suspect) it's a problem with the CSS is from all the research into people with similar problems. Currently, I have NO add-ons running.

Mehr Details zum System

Das passierte

Ein paar Mal pro Woche

Das begann, als…

I THINK there was an update, but I'm not 100% sure.

Installierte Plugins

  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Shockwave Flash 11.3 r300
  • Next Generation Java Plug-in 10.5.0 for Mozilla browsers
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.3
  • 4.1.10329.0
  • np-mswmp

Anwendung

  • User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20100101 Firefox/14.0.1

Weitere Informationen

Application Basics
Name
Firefox
Version
14.0.1
User Agent
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20100101 Firefox/14.0.1
Profile Folder
Show Folder
Enabled Plugins
about:plugins
Build Configuration
about:buildconfig
Crash Reports
about:crashes
Memory Use
about:memory
Extensions
Name
Version
Enabled
ID
LJlogin
2.2.1
false
{ad4ee9e5-49c7-4589-acf3-db9fa76a95c9}
Norton Vulnerability Protection
11.0.0.243 - 2
false
{BBDA0591-3099-440a-AA10-41764D9DB4DB}
Important Modified Preferences
Name
Value
accessibility.typeaheadfind.flashBar
0
browser.cache.disk.capacity
1048576
browser.cache.disk.smart_size.first_run
false
browser.cache.disk.smart_size_cached_value
1048576
browser.places.smartBookmarksVersion
4
browser.startup.homepage
http://www.google.com/ig
browser.startup.homepage_override.buildID
20120713134347
browser.startup.homepage_override.mstone
14.0.1
extensions.lastAppVersion
14.0.1
network.cookie.prefsMigrated
true
places.database.lastMaintenance
1343933705
places.history.expiration.transient_current_max_pages
102041
privacy.donottrackheader.enabled
true
privacy.sanitize.migrateFx3Prefs
true
security.warn_viewing_mixed
false
Graphics
Adapter Description
Intel(R) HD Graphics
Vendor ID
0x8086
Device ID
0x0046
Adapter RAM
Unknown
Adapter Drivers
igdumd64 igd10umd64 igdumdx32 igd10umd32
Driver Version
8.15.10.2182
Driver Date
7-19-2010
Direct2D Enabled
Blocked for your graphics driver version. Try updating your graphics driver to version 8.15.10.2202 or newer.
DirectWrite Enabled
false (6.1.7601.17789)
ClearType Parameters
ClearType parameters not found
WebGL Renderer
Blocked for your graphics driver version. Try updating your graphics driver to version 8.15.10.2202 or newer.
GPU Accelerated Windows
0. Blocked for your graphics driver version. Try updating your graphics driver to version 8.15.10.2202 or newer.
JavaScript
Incremental GC
1
Library Versions
Expected minimum version
Version in use
NSPR
4.9
4.9
NSS
3.13.5.0 Basic ECC
3.13.5.0 Basic ECC
NSS Util
3.13.5.0
3.13.5.0
NSS SSL
3.13.5.0 Basic ECC
3.13.5.0 Basic ECC
NSS S/MIME
3.13.5.0 Basic ECC
3.13.5.0 Basic ECC

Fragesteller

Just got it to happen again: website loaded without CSS, opened the console, refreshed, still no CSS. The first GET line trying to access a CSS file was [undefined]; clicked it and found request headers but no response headers again.

I'm about ready to switch to a different browser (even though I REALLY don't want to - I love Firefox) if I can't figure this out.

Just got it to happen again: website loaded without CSS, opened the console, refreshed, still no CSS. The first GET line trying to access a CSS file was [undefined]; clicked it and found request headers but no response headers again. I'm about ready to switch to a different browser (even though I REALLY don't want to - I love Firefox) if I can't figure this out.
cor-el
  • Top 10 Contributor
  • Moderator
17582 Lösungen 159076 Antworten
Veröffentlicht

That can be caused by a corrupted cache.

Are you using any cleanup programs that affect the Firefox cache (about:cache)?

You can try to remove the entire cache folder in the location shown on the about:cache page.

That can be caused by a corrupted cache. Are you using any cleanup programs that affect the Firefox cache (about:cache)? You can try to remove the entire cache folder in the location shown on the about:cache page.