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Addblock plus won't download--says it can't modify a file

Posted

I previously had Adblock Plus installed, but it stopped working several versions of Firefox (for mac) ago. The add-ons manager/extensions says I have version 2.3.2 and it is disabled. When I tried to add the latest version from the get addons page, I first get a dialog asking if I want to install the file; when I select "install now", I get a box saying that "Adblock plus could not be installed because Firefox cannot modify the necessary file" I also downloaded and installed AnonymoX, which appeared to install successfully, but I find no icons or controls, no way to start it up, control its function, or verify that it is in fact installed/working. There is no icon window at the bottom of my Firefox window (or anywhere else that I can find).

Chosen solution

Hello,

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.

Read this answer in context 6

Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.9 r900
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime Web site.
  • Displays Java applet content, or a placeholder if Java is not installed.
  • Adobe® Acrobat® Plug-in for Web Browsers, Version 10.1.8
  • The Google Earth Plugin allows you to view 3D imagery and terrain in your web browser.
  • 5.1.20513.0
  • Office Live Update v1.0

Application

  • Firefox 24.0
  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:24.0) Gecko/20100101 Firefox/24.0
  • Support URL: https://support.mozilla.org/1/firefox/24.0/Darwin/en-US/

Extensions

  • anonymoX 2.1.1 (client@anonymox.net)
  • DuckDuckGo Plus 0.2.53 (jid1-ZAdIEUB7XOzOJw@jetpack)
  • Troubleshooter 1.1a (troubleshooter@mozilla.org)
  • URL Advisor 13.0.0 (urladvisor@kaspersky.com)
  • Adblock Plus 2.3.2 ({d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}) (Inactive)
  • Adblock Plus Pop-up Addon 0.9.1 (adblockpopups@jessehakanen.net) (Inactive)
  • Virtual Keyboard 13.0.0 (wvkbd@kaspersky.com) (Inactive)

Javascript

  • incrementalGCEnabled: True

Graphics

  • adapterDescription:
  • adapterDeviceID: 0x 640
  • adapterDrivers:
  • adapterRAM:
  • adapterVendorID: 0x10de
  • driverDate:
  • driverVersion:
  • info: {u'AzureCanvasBackend': u'quartz', u'AzureFallbackCanvasBackend': u'none', u'AzureContentBackend': u'none'}
  • numAcceleratedWindows: 3
  • numTotalWindows: 3
  • webglRenderer: NVIDIA Corporation -- NVIDIA GeForce GT 120 OpenGL Engine
  • windowLayerManagerRemote: False
  • windowLayerManagerType: OpenGL

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.search.useDBForOrder: True
  • browser.startup.homepage: http://www.nytimes.com/
  • browser.startup.homepage_override.buildID: 20130910160258
  • browser.startup.homepage_override.mstone: 24.0
  • dom.mozApps.used: True
  • dom.w3c_touch_events.expose: False
  • extensions.lastAppVersion: 24.0
  • font.internaluseonly.changed: False
  • gfx.blacklist.webgl.msaa: 4
  • network.cookie.prefsMigrated: True
  • places.database.lastMaintenance: 1381700620
  • places.history.expiration.transient_current_max_pages: 104858
  • plugin.disable_full_page_plugin_for_types: application/pdf,application/vnd.fdf,application/vnd.adobe.xdp+xml,application/vnd.adobe.xfd+xml
  • plugin.importedState: True
  • plugin.state.flip4mac wmv plugin: 0
  • privacy.sanitize.migrateFx3Prefs: True
  • storage.vacuum.last.index: 0
  • storage.vacuum.last.places.sqlite: 1381700855

Misc

  • User JS: No
  • Accessibility: No
iamjayakumars
  • Top 10 Contributor
416 solutions 4930 answers

Chosen Solution

Hello,

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.

cor-el
  • Top 10 Contributor
  • Moderator
10753 solutions 96760 answers

Helpful Reply

Try to delete the ABP file (.xpi) or folder in the extensions folder in the Firefox profile folder.

Look for a name like this:

{d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}

You can use this button to go to the Firefox profile folder:

Modified by cor-el

Helpful Reply

i found the profile file, but couldn't find any .xpi file or folder in it.

Question owner

Resetting Firefox fixed both my problems. Thanks for the help to both respondents.

Modified by Joe.K