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How to remove Yahoo Extension


Got an email from Yahoo about new Yahoo Extension for Firefox. I installed it, but did not like it. It did more than I thought it was going to do, it changed my home page, default search engine, etc... so I went to my Add-On manager and Removed the extension. Reset my home page, etc, but even though the Yahoo Extension no longer shows on my add-on manager page, it is still active. When I click on the + to get a new tab, it automatically opens www.yahoo.com/?ilc=301&fr=ff-tab instead of giving me a blank page. How do I remove this.

Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.8 r800
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.8
  • Google Update
  • Next Generation Java Plug-in 10.25.2 for Mozilla browsers
  • 5.1.20513.0
  • Nitro PDF plugin for Firefox and Chrome
  • Yahoo Application State Plugin version
  • The plug-in allows you to open and edit files using Microsoft Office applications
  • Office Authorization plug-in for NPAPI browsers


  • Firefox 23.0.1
  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:23.0) Gecko/20100101 Firefox/23.0
  • Support URL: http://support.mozilla.org/1/firefox/23.0.1/WINNT/en-US/


  • Adblock Plus 2.3.2 ({d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d})
  • DoNotTrackMe (donottrackplus@abine.com)
  • Download Manager Tweak 0.9.8 ({F8A55C97-3DB6-4961-A81D-0DE0080E53CB})
  • Pixlr Grabber 2.1.4 ({d47a9f51-8281-43fa-f450-f28ef8735e9a})
  • Troubleshooter 1.1a (troubleshooter@mozilla.org)
  • Ask Toolbar (toolbar@ask.com) (Inactive)
  • HughesNet Download Manager plugin 1.3.4 (hughesnetdownloadmanager@hughesnet.net) (Inactive)
  • Norton Toolbar 2013.4.3.4 ({2D3F3651-74B9-4795-BDEC-6DA2F431CB62}) (Inactive)
  • Norton Vulnerability Protection - 1 ({BBDA0591-3099-440a-AA10-41764D9DB4DB}) (Inactive)


  • incrementalGCEnabled: True


  • adapterDescription: AMD Radeon HD 7570
  • adapterDescription2:
  • adapterDeviceID: 0x675d
  • adapterDeviceID2:
  • adapterDrivers: aticfx64 aticfx64 aticfx64 aticfx32 aticfx32 aticfx32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64
  • adapterDrivers2:
  • adapterRAM: 1024
  • adapterRAM2:
  • adapterVendorID: 0x1002
  • adapterVendorID2:
  • direct2DEnabled: True
  • directWriteEnabled: True
  • directWriteVersion: 6.2.9200.16571
  • driverDate: 4-25-2012
  • driverDate2:
  • driverVersion: 8.960.11.1000
  • driverVersion2:
  • info: {u'AzureCanvasBackend': u'direct2d', u'AzureFallbackCanvasBackend': u'cairo', u'AzureContentBackend': u'direct2d'}
  • isGPU2Active: False
  • numAcceleratedWindows: 1
  • numTotalWindows: 1
  • webglRenderer: Google Inc. -- ANGLE (AMD Radeon HD 7570)
  • windowLayerManagerType: Direct3D 10

Modified Preferences

  • accessibility.typeaheadfind.flashBar: 0
  • 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.newtab.url: http://www.yahoo.com/?ilc=301&fr=ff-tab
  • browser.places.smartBookmarksVersion: 4
  • browser.search.useDBForOrder: True
  • browser.startup.homepage: http://my.msn.com/default.aspx?mypg=1
  • browser.startup.homepage_override.buildID: 20130814063812
  • browser.startup.homepage_override.mstone: 23.0.1
  • browser.tabs.onTop: False
  • browser.urlbar.autocomplete.enabled: False
  • dom.mozApps.used: True
  • dom.w3c_touch_events.expose: False
  • extensions.lastAppVersion: 23.0.1
  • gfx.direct3d.last_used_feature_level_idx: 0
  • gfx.direct3d.prefer_10_1: True
  • network.cookie.prefsMigrated: True
  • places.database.lastMaintenance: 1380557660
  • places.history.enabled: False
  • places.history.expiration.transient_current_max_pages: 104858
  • plugin.disable_full_page_plugin_for_types: application/pdf
  • plugin.importedState: True
  • plugin.state.npdeployjava: 0
  • privacy.cpd.cookies: False
  • privacy.donottrackheader.enabled: True
  • privacy.sanitize.migrateFx3Prefs: True
  • privacy.sanitize.timeSpan: 0
  • security.warn_viewing_mixed: False
  • storage.vacuum.last.index: 1
  • storage.vacuum.last.places.sqlite: 1379312887


  • User JS: No
  • Accessibility: No
SHASHANK ROY 21 solutions 119 answers

Hello, Please follow the following:

  • 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.

Please report if it helped ! Thanks!

Helpful Reply

I had already done all this and when I go to the Add-on manager it does not show the extension listed anymore, but it still takes me to Yahoo when I click a blank tab. I believe that somewhere in the internal workings of Firefox that the Yahoo extension saves a setting telling it to go to this page when I click a new tab and when you remove the Yahoo extension it is not updating this information.

SHASHANK ROY 21 solutions 119 answers


The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information.
Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.

Further information can be found in the Reset Firefox – easily fix most problems article.

Did this fix your problems? Please report back to us!

Thank you.

Helpful Reply

Well... this did clear the problem, but I had to reconfigure Firefox and was unable to get it back the way I had it... so, found instructions on how to restore my old firefox data by creating a new profile, deleting all the new info and copied the data from my "Old Firefox Data" folder and went back to my original settings, which included the new tab always going to Yahoo problem. Kept searching for solution online and found instructions on how to reset the NewTab option in the config file... here are the steps that were much easier and less painful that doing a total reset of Firefox. All I had to do was reset the newtab option:

"manually reset the new tab page by entering about:config into the firefox location bar (confirm the info message in case it shows up), searching for the preference named browser.newtab.url and right-clicking & resetting it to its default value (about:newtab)."

This worked perfect and got me what I needed and firefox is back to normal for me with all my add-ons, extensions and prefrences sill in place.

Modified by BSLewis

JohnthePilot 0 solutions 3 answers

@BSLewis. Many thanks. This solved the problem for me.