This happens only in Firefox?

Hello plecostamus, try to Turn off hardware acceleration and check firefox again.

(in safe mode hardware acceleration is disable)

thank you

yes just firefox..if i use internet explorer it dosent happen

i have also tried turningof acceleration and that didnt work

Check if you have a userContent.css file in your profile folder in the chrome folder.

(also in safe mode the userChrome.css and userContent.css files are ignored.)

thank you

nope no usercontent.css

Create a new firefox profile and check it in the new profile.

After that, if with the new profile firefox works great see : Recovering important data from an old profile

thanks again

infact no user......css of any kind

nope new profile is the same

I found on a forum, a person with the same problem, she said after uninstall the helvetica font (and related fonts) , she restarted the PC and the problem was solved.

screen print what it looks like

Are you sure that hardware acceleration is disable ?

In order to be able to find the correct solution to your problem, we require some more non-personal information from you. Please do the following:

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thanks

dont have helvetica font on my pc

Try change on about:config this option:

layers.acceleration.force-enabled layers.acceleration.disabled

to value true.

Application Basics

Name: Firefox Version: 26.0 User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:26.0) Gecko/20100101 Firefox/26.0

Extensions

Name: avast! Online Security Version: 9.0.2006.53 Enabled: false ID: wrc@avast.com

Name: Logitech SetPoint Version: 6.5 Enabled: false ID: {F003DA68-8256-4b37-A6C4-350FA04494DF}

Important Modified Preferences

browser.cache.disk.capacity: 358400 browser.cache.disk.smart_size.first_run: false browser.cache.disk.smart_size.use_old_max: false browser.cache.disk.smart_size_cached_value: 358400 browser.places.smartBookmarksVersion: 4 browser.sessionstore.upgradeBackup.latestBuildID: 20131205075310 browser.startup.homepage_override.buildID: 20131205075310 browser.startup.homepage_override.mstone: 26.0 dom.mozApps.used: true extensions.lastAppVersion: 26.0 gfx.direct2d.disabled: true gfx.direct3d.last_used_feature_level_idx: 0 layers.acceleration.disabled: true network.cookie.prefsMigrated: true places.history.expiration.transient_current_max_pages: 104858 plugin.disable_full_page_plugin_for_types: application/pdf plugin.importedState: true privacy.sanitize.migrateFx3Prefs: true

Graphics

Adapter Description: ATI Radeon HD 4800 Series Adapter Drivers: aticfx64 aticfx64 aticfx64 aticfx32 aticfx32 aticfx32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64 Adapter RAM: 1024 ClearType Parameters: DISPLAY1 [ Gamma: 2200 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 400 ] DISPLAY2 [ Gamma: 2200 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 400 ] Device ID: 0x9460 Direct2D Enabled: true DirectWrite Enabled: true (6.2.9200.16571) Driver Date: 4-29-2013 Driver Version: 8.970.100.1100 GPU #2 Active: false GPU Accelerated Windows: 3/3 Direct3D 10 Vendor ID: 0x1002 WebGL Renderer: Google Inc. -- ANGLE (ATI Radeon HD 4800 Series Direct3D9Ex vs_3_0 ps_3_0) windowLayerManagerRemote: false AzureCanvasBackend: direct2d AzureContentBackend: direct2d AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0

JavaScript

Incremental GC: true

Accessibility

Activated: false Prevent Accessibility: 0

Library Versions

NSPR Expected minimum version: 4.10.2 Version in use: 4.10.2

NSS Expected minimum version: 3.15.3.1 Basic ECC Version in use: 3.15.3.1 Basic ECC

NSSSMIME Expected minimum version: 3.15.3.1 Basic ECC Version in use: 3.15.3.1 Basic ECC

NSSSSL Expected minimum version: 3.15.3.1 Basic ECC Version in use: 3.15.3.1 Basic ECC

NSSUTIL Expected minimum version: 3.15.3.1 Version in use: 3.15.3.1

changing config didnt help either :(

Any luck if you set gfx.content.azure.enabled to False, and gfx.direct2d.disabled to False also ? (always in about:config)

well its looking good at the moment so lets hope it stays that way so thanks to ideato for "set gfx.content.azure.enabled to False, and gfx.direct2d.disabled to False also ? (always in about:config) " which seems to have done the trick and thanks to toddy_victor also for his input :) :) :)

Thank you ideato, it helped me as well.

Best regards Jesper

(Windows 8.1 and Firefox 26, both in Danish versions).