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Disabling all add-ons fixed problem.......but disabling one at a time has can this be??

  • 25 uphendule
  • 2 zinale nkinga
  • Igcine ukuphendulwa ngu CT71

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I have four Wordpress blogs that I visit. Wordpress has a black bar at the top of the screen that you can click on and it'll bring you back to the top of the page. I am running FF 38.0.5, and on one of these blogs this feature stopped working. I ran in safe mode and the feature worked correctly. When I unistalled each add on one by one to figure out which one it might be, the problem still persists. How can this be??

Isisombululo esikhethiwe

Thanks, I figured out the problem, quite by accident too. I've wanted to try uBlock over Adblock for quite some time......and whaddya know! Weird, because I had disabled Adblock too.

Thanks for all your help guys.

Funda le mpendulo ngokuhambisana nalesi sihloko 👍 0

All Replies (20)

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Hello CT71, try disabling graphics hardware acceleration.

You might need to restart Firefox in order for this to take effect, so save all work first (e.g., mail you are composing, online documents you're editing, etc.).

Then perform these steps:

  1. Open Firefox Options tab as follows, click the menu button New Fx Menu and select Options.
  2. In the Firefox Options tab, click the Advanced tab, then select General.
  3. In the settings list, you should find the Use hardware acceleration when available checkbox. Uncheck this checkbox.
  4. Now, restart Firefox and see if the problems persist.

Additionally, please check for updates for your graphics driver by following the steps mentioned in the following Knowledge base articles:

(Except the extensions, in safe mode AND hardware acceleration is disable) :-)

Thank you.

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@ideato: Yes, I had already tried hardware acceleration, to no avail. As far as upgrading my graphics driver, that is something sort of above my pay scale, not very comfortable in doing that. I can say that it is a brand new computer, and all four of these wordpress blogs are done by the same person, so the fact that 3 of them work and one doesn't is kinda odd.

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Did you try the default theme?

In Firefox Safe mode these changes are effective:

  • all extensions are disabled (about:addons)
  • default theme is used (no persona)
  • userChrome.css and userContent.css are ignored (chrome folder in profile folder)
  • default toolbar layout is used
  • JavaScript JIT compilers are disabled
  • hardware acceleration is disabled (Options > Advanced > General)
  • plugins are not affected
  • preferences are not affected
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It's very rare, but occasionally I hear about self-hiding extensions. Because they are not visible in regular mode, you cannot disable them manually....

If you check the support information page, can you see any extensions enabled? The list is a bit down the page. You can open it using either:

  • "3-bar" menu button > "?" button > Troubleshooting Information
  • (menu bar) Help > Troubleshooting Information
  • type or paste about:support in the address bar and press Enter
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@cor-el: I shows I only have the default.

@jscher2000: All the extensions listed on the support page are the same as in the add-ons manager.

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Why don't I have that bar on my blog?! I have a black bar when I'm logged into the site, but I don't see a return-to-top button. Perhaps it's something unique to their WordPress theme... can you post a link to the one that isn't working for you?

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Can you attach a screenshot?

  • Use a compressed image type like PNG or JPG to save the screenshot
  • Make sure that you do not exceed the maximum size of 1 MB

Can you post the extensions?

Okulungisiwe ngu cor-el

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Not sure if I did it right or not, but hopefully an image appears.

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Type about:support in the address bar and press Enter. Under the main banner, press the button; Copy Text To Clipboard.. Then in the reply box at the bottom of this page, do a right click in the box and select Paste. This will show us your system details. No Personal Information Is Collected.

Discovered Hidden Add-on On Firefox. How To Check Yours

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Application Basics

Name: Firefox Version: 38.0.5 Build ID: 20150525141253 Update Channel: release User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Firefox/38.0 Multiprocess Windows: 0/1 (default: false)

Crash Reports for the Last 3 Days

All Crash Reports


Name: Adblock Plus Version: Enabled: true ID: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}

Name: Adblock Plus Pop-up Addon Version: Enabled: true ID:

Name: Classic Theme Restorer Version: 1.3.3 Enabled: true ID: ClassicThemeRestorer@ArisT2Noia4dev

Name: DownThemAll! Version: Enabled: true ID: {DDC359D1-844A-42a7-9AA1-88A850A938A8}

Name: Flash Video Downloader - YouTube HD Downloader [4K] Version: Enabled: true ID:

Name: Googlebar Lite Version: Enabled: true ID: {79c50f9a-2ffe-4ee0-8a37-fae4f5dacd4f}

Name: McAfee WebAdvisor Version: 4.0.0 Enabled: true ID: {4ED1F68A-5463-4931-9384-8FFF5ED91D92}

Name: NoScript Version: Enabled: true ID: {73a6fe31-595d-460b-a920-fcc0f8843232}

Name: S3.Google Translator Version: 4.02.1-signed Enabled: true ID: s3google@translator

Name: Sidebar Bookmark Selector Version: 3.0.1-signed Enabled: true ID: sidebarBookmarkSelector@alice

Name: Star-Button In Urlbar Version: 1.2.1-signed Enabled: true ID: Starbuttoninurlbar@ArisT2Noia4dev

Name: Status-4-Evar Version: 2015. Enabled: true ID:

Name: Avast Online Security Version: Enabled: false ID:


Adapter Description: AMD Radeon HD 7560D Adapter Drivers: aticfx64 aticfx64 aticfx64 aticfx32 aticfx32 aticfx32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64 Adapter RAM: 768 Device ID: 0x9904 Direct2D Enabled: true DirectWrite Enabled: true (6.3.9600.17795) Driver Date: 8-19-2013 Driver Version: GPU #2 Active: false GPU Accelerated Windows: 1/1 Direct3D 11 (OMTC) Subsys ID: 00000000 Vendor ID: 0x1002 WebGL Renderer: Google Inc. -- ANGLE (AMD Radeon HD 7560D Direct3D11 vs_5_0 ps_5_0) windowLayerManagerRemote: true AzureCanvasBackend: direct2d 1.1 AzureContentBackend: direct2d 1.1 AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0

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.frecency_experiment: 4 true false browser.places.smartBookmarksVersion: 7 browser.sessionstore.upgradeBackup.latestBuildID: 20150525141253 browser.startup.homepage: browser.startup.homepage_override.buildID: 20150525141253 browser.startup.homepage_override.mstone: 38.0.5 dom.mozApps.used: true extensions.lastAppVersion: 38.0.5 gfx.direct3d.last_used_feature_level_idx: 0 media.gmp-eme-adobe.lastUpdate: 1433215593 media.gmp-eme-adobe.version: 10 media.gmp-gmpopenh264.lastUpdate: 1431799025 media.gmp-gmpopenh264.version: 1.4 media.gmp-manager.buildID: 20150525141253 media.gmp-manager.lastCheck: 1434234740 network.cookie.prefsMigrated: true network.predictor.cleaned-up: true places.database.lastMaintenance: 1434171085 places.history.expiration.transient_current_max_pages: 104858 plugin.disable_full_page_plugin_for_types: application/pdf plugin.importedState: true privacy.sanitize.migrateFx3Prefs: true privacy.sanitize.timeSpan: 4 storage.vacuum.last.index: 1 storage.vacuum.last.places.sqlite: 1431808566

Important Locked Preferences


Incremental GC: true


Activated: false Prevent Accessibility: 0

Library Versions

NSPR Expected minimum version: 4.10.8 Version in use: 4.10.8

NSS Expected minimum version: 3.18.1 Basic ECC Version in use: 3.18.1 Basic ECC

NSSSMIME Expected minimum version: 3.18.1 Basic ECC Version in use: 3.18.1 Basic ECC

NSSSSL Expected minimum version: 3.18.1 Basic ECC Version in use: 3.18.1 Basic ECC

NSSUTIL Expected minimum version: 3.18.1 Version in use: 3.18.1

Experimental Features

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Some added toolbar and anti-virus add-ons are known to cause Firefox issues. Disable All of them.

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To my knowledge I don't have any added Toolbars, and disabling anything on my Antivirus doesn't seem like the greatest solution. I d'loaded my AV fairly stock anyways, without alot of the added add ons. But maybe I'm wrong.

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Fred isn't suggesting disabling your antivirus software, but only the optional extensions that comes with some AV suites.

Does it make any difference if you make a site-specific exception in your Adblock extensions for the blog with the problem? I don't know how that works, but understand from other posts that it's possible. Or there may be a way to just turn ABP off temporarily from its toolbar button to test the site with no blocking (try reloading the site bypassing the cache using Ctrl+Shift+r).

If extensions are not involved, it's hard to think of how it might affect one button on one site, but did you ever create a userContent.css file? That's an optional file you can use to override style rules on websites, and is something disabled in Firefox's Safe Mode. Firefox doesn't include a userContent.css file, so this isn't likely to have happened without your participation.

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I've disabled, or temporarily turned off everything I know. Nothing has worked. I'm gonna give up, it's just irritating me too much now. The really odd thing is that out of the four blogs, which are operated by the same person, two work perfectly, one does not work at all, and the other I thought didn't work but apparently it works on and off. They all work perfect on my old XP machine, but not this brand new computer. Thanks for all the help, I just cannot take it anymore though.

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Sorry we couldn't spot it.

As a short-term workaround, the Home key or Ctrl+Home usually get you back to the top of a page. (If the cursor is in a multi-line editing control, that only takes you to the top of the editing area.)

If you decide to post the URLs, we could compare to see whether we can figure out the difference.

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Thanks. My hand is always on the mouse, not a big keyboard shortcut guy. I'll probably eventually get to the bottom of this. But right now, it's just taking up to much of my time.

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jscher2000 said

Does it make any difference if you make a site-specific exception in your Adblock extensions for the blog with the problem? I don't know how that works, but understand from other posts that it's possible.

Load the web page. After the page is loaded, click the down arrow next to the AdBlock icon. Now select Disable on <web site>.

Forum; Adblock Plus Homepage {web link}

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Are there any error messages in the Web Console (Firefox/Tools > Web Developer)?

Can you attach a screenshot that shows this toolbar?

Can you right-click this toolbar and open the Inspector (Inspect Element)?

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Here's the web console. I'm unsure what toolbar in the inspector that I'm supposed to right click though.

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Sorry, couldn't get the whole page in one shot.

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