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Firefox sync creates duplicate search/form history results

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I have Firefox synced on 3 PCs and a laptop. Some of the sites I visit, sync creates multiple duplicates in form/search boxes. Two that I know of for sure are outlook/hotmail (the box you enter your e-mail address) and my bank website (where I enter my account name). For example, I would see 2 or 3 options to select the same e-mail address in the dropdown history box. If I go to delete all but one of them, it disappears completely the next time so I have zero options.

This also only happens on some of my computers. Some of them only have one option (which is how it should be).

Minor issue, but it's kind of bothersome.

I have Firefox synced on 3 PCs and a laptop. Some of the sites I visit, sync creates multiple duplicates in form/search boxes. Two that I know of for sure are outlook/hotmail (the box you enter your e-mail address) and my bank website (where I enter my account name). For example, I would see 2 or 3 options to select the same e-mail address in the dropdown history box. If I go to delete all but one of them, it disappears completely the next time so I have zero options. This also only happens on some of my computers. Some of them only have one option (which is how it should be). Minor issue, but it's kind of bothersome.

rahzel54 moo ko soppali ci

All Replies (8)

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Hi rahzel54,

Thank you for your question. I understand that there are some duplicates. If I may ask, what are the list of add ons on the other devices? Do you use any other syncing add ons?

You can try this for the local profile https://addons.mozilla.org/en-US/fire.../?src=search However can you please elaborate what these duplicates look like? How do I create a screenshot of my problem?

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I don't use any sync add ons. The add ons I use are flash video downloader and custom new tab.

The duplicates are only on my 'other' devices, not my main device (the one I use the most and the one I created my sync account on). I'll have to wait until I get time to go on my other devices to take a screenshot. For now, this is what I mean. Here is the outlook/hotmail sign in page:

http://www.icts.canterbury.ac.nz/graphics/outlook.com%20login%20screen.JPG

When I press the down arrow in the account name box, I see 2-3 entries of the same e-mail address. Again, on my main PC, I would only see one entry of my e-mail address (like I should). This also happens on my bank website.

When I try to delete the duplicates and only keep one entry, the next time I visit the page, they're all gone. So it seems like there's some bug in the search/form history sync.

rahzel54 moo ko soppali ci

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HI rahzel54, Can you do me a favor and check if there are also duplicates in your list of cookies on the other devices? If you also have logs from around the time you noticed the duplicates this iwll be helpful:


How do I turn on sync logs:'
  1. Open about:config and turn on: services.sync.log.appender.file.logOnSuccess and services.sync.log.logger.engine.bookmarks
  2. Restart Firefox and look at: about:sync-log
  3. Logs and error messages will be located here, are there any error lines that you notice right away?


Thank you, please let us know your findings to make sure nothing is going wrong. We look forward to your reply!

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No duplicates that I could see.

I checked the logs and there are 2 errors on one of my PCs. Anything specific you need to know about the logs?

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Pasting the logs here should be fine. Or just the errors if anything private is on the logs.

If you find they are too long to fit in this textarea (SUMO has a character size limit), please upload it to pastebin.com or similar and share the link.

Moses moo ko soppali ci

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Just the error with the line should be ok too.

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Is the error code the number following the word 'error'? If so, the errors are: error-1401344366491 error-1401647929153

On my main PC, I actually have more errors even though everything appears fine on this system. It's my other PCs that have issues, mostly my livingroom HTPC. The errors on my main system are: error-1401330464942 error-1401659314312 error-1401688759750

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Check the date and time in the clock on your computer: (double) click the clock icon on the Windows Taskbar.