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Why does the cookie google.com appear immediately when I start Firefox? I clear my browsing history upon exit and my home page is https://duckduckgo.com.

  • 3 replies
  • 5 have this problem
  • 3 views
  • Last reply by FredMcD

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When I open Firefox to my home page duckduckgo.com and go check cookies before doing anything else, I find only the one cookie google.com. My Privacy options are Tracking Tell sites I do not want to be tracked History Use custom settings for history

  Remember my browsing and download history
  Remember search and form history
  Accept cookies from sites  Accept third-party cookies: Always  Keep until: I close Firefox

Clear history when Firefox closes

When I open Firefox to my home page duckduckgo.com and go check cookies before doing anything else, I find only the one cookie google.com. My Privacy options are Tracking Tell sites I do not want to be tracked History Use custom settings for history Remember my browsing and download history Remember search and form history Accept cookies from sites Accept third-party cookies: Always Keep until: I close Firefox Clear history when Firefox closes

Modified by meanmac

Chosen solution

How do you undo a "chosen solution?" This problem is not solved.

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Firefox has an internal cookie from Google, which is named PREF, and is associated with requesting the list of bad sites from the SafeBrowsing project. This is separate from the PREF cookie used when visiting Google search.

However, I don't know what google.dat is. What site is it for and what kind of data does it seem to contain?

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Chosen Solution

How do you undo a "chosen solution?" This problem is not solved.

Modified by meanmac

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A post was flagged as Solved Problem. Please remove that flag. If you don’t, others that can help may not read this post.


Type about:addons<enter> in the address bar to open your Add-ons Manager. Hot key; <Control>(Mac:<Command>)<Shift> A)

In the Add-ons Manager, on the left, select Extensions. Remove Google Anything. Now do the same in the computers Programs Folder.

Windows: Start > Control Panel > Uninstall Programs. Mac: Open the "Applications" folder. Linux: Check your user manual.


After the problem is fixed, Bookmark and use this; Download the Mozilla Search Reset {web link} This add-on is very simple: on installation, it backs up and then resets your search preferences and home page to their default values, and then uninstalls itself. This affects the search bar, URL bar searches, and the home page.