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Please help me fix a 400 error message that i'm getting for a site I've visited a number of times and is accessible through Safari browser.

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I am a fitbit owner and downloaded their app on my macbook pro several weeks ago. I have accessed that app to review fitbit progress multiple times each day since. Today, i can not do that. I can't even access the Fitbit website. I get a 400 error - your browser has sent an invalid request.

i am having no trouble accessing any other internet content via firefox.

I can access the Fitbit website and my account through Safari. i can also access the Fitbit website and my account through my iphone. The problem appears to be something specific between my firefox and Fitbit.

Thanks for your help.

I am a fitbit owner and downloaded their app on my macbook pro several weeks ago. I have accessed that app to review fitbit progress multiple times each day since. Today, i can not do that. I can't even access the Fitbit website. I get a 400 error - your browser has sent an invalid request. i am having no trouble accessing any other internet content via firefox. I can access the Fitbit website and my account through Safari. i can also access the Fitbit website and my account through my iphone. The problem appears to be something specific between my firefox and Fitbit. Thanks for your help.

Chosen solution

It seems that occasionally, cookie and cache files can become corrupted (they don't get saved properly). Why does that happen? I don't really know. I'm sure there are multiple reasons for that. If we could, we'd prevent it from ever happening. Since we can't do that, we just have this way of starting over.

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All Replies (3)

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Hi, You should be able to fix this by clearing Firefox's cookies and cache. Here's how:

  1. Click the menu button New Fx Menu and click History button, and then Clear Recent History... .
  2. Under "Time range to clear", select "Everything".
  3. Now, click the arrow next to Details to toggle the Details list active.
  4. From the details list, check Cache and Cookies and uncheck everything else.
  5. Now click the Clear now button.

Let me know how it goes, Michael

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Thank you Michael. Working just fine for me now. This is the first time something like this has happened to me. Is it worth my while to understand why it happened (not a technical person, mind you)?

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Chosen Solution

It seems that occasionally, cookie and cache files can become corrupted (they don't get saved properly). Why does that happen? I don't really know. I'm sure there are multiple reasons for that. If we could, we'd prevent it from ever happening. Since we can't do that, we just have this way of starting over.