Are you using sync? Shut it down for now.

[v57+] Places Maintenance is built into Firefox.

Type about:support<enter> in the address bar.

You will find Places Database near the bottom. Press the Verify Integrity button.

When done, copy and post the results here.

Dear FredMcD Thank you for your prompt help.

First I must tell you I am old and not computer savvy. However, I did manage to find how to turn sync settings off via settings then accounts then syn settings and turn off. When I did this it greyed out the four individual sync settings below, e.g. passwords, language preference,ease of access and other windows settings.

Have I done something wrong? I don't recall ever turning sync settings on. Maybe I have accidentally but certainly not through this menu approach.

I shall now look at your next suggestion and see if I can do this.

Again, my thanks, Anthony

Integrity

> Task: checkIntegrity + The places.sqlite database is sane + The favicons.sqlite database is sane > Task: invalidateCaches + The caches have been invalidated > Task: checkCoherence + The database is coherent > Task: expire + Database cleaned up > Task: originFrecencyStats + Recalculated origin frecency stats > Task: vacuum + Initial database size is 15360KiB + The database has been vacuumed + Final database size is 15360KiB > Task: stats + Places.sqlite size is 15360KiB + Favicons.sqlite size is 17888KiB + pragma_user_version is 53 + pragma_page_size is 32768 + pragma_cache_size is -2048 + pragma_journal_mode is wal + pragma_synchronous is 1 + History can store a maximum of 111868 unique pages + Table moz_places has 19267 records + Table moz_historyvisits has 51172 records + Table moz_inputhistory has 22 records + Table moz_hosts has 0 records + Table moz_bookmarks has 357 records + Table moz_keywords has 0 records + Table sqlite_sequence has 1 records + Table moz_anno_attributes has 3 records + Table moz_annos has 50 records + Table moz_items_annos has 0 records + Table sqlite_stat1 has 18 records + Table moz_bookmarks_deleted has 0 records + Table moz_meta has 7 records + Table moz_origins has 1926 records + Index sqlite_autoindex_moz_inputhistory_1 + Index sqlite_autoindex_moz_hosts_1 + Index sqlite_autoindex_moz_keywords_1 + Index sqlite_autoindex_moz_anno_attributes_1 + Index sqlite_autoindex_moz_bookmarks_deleted_1 + Index sqlite_autoindex_moz_origins_1 + Index moz_places_hostindex Dear FredMcD

The following is what happened when I pressed the verify button.

Again I am panicking. Have I done anything wrong?

Anthony

+ Index moz_places_visitcount + Index moz_places_frecencyindex + Index moz_places_lastvisitdateindex + Index moz_historyvisits_placedateindex + Index moz_historyvisits_fromindex + Index moz_historyvisits_dateindex + Index moz_bookmarks_itemindex + Index moz_bookmarks_parentindex + Index moz_bookmarks_itemlastmodifiedindex + Index moz_places_guid_uniqueindex + Index moz_bookmarks_guid_uniqueindex + Index moz_annos_placeattributeindex + Index moz_items_annos_itemattributeindex + Index moz_keywords_placepostdata_uniqueindex + Index moz_places_url_hashindex + Index moz_bookmarks_dateaddedindex + Index moz_places_originidindex > Task: _refreshUI

I just noticed there are two separate lists here or is just that I put Dear Fred in the middle of the list by mistake instead of at the top?

What have I done wrong?

Anthony (stressed but grateful for your help)

Dear FredMcD

I am confused. I just google searched what sync means and it said synching a computer to another device, eg. phone or other computer.

I don't have any other device.

Please help me. I am really stressed?

Thanks,

Anthony

FredMcD said

Are you using sync? Shut it down for now.

Dear Fred

Please see my replies to you online. I have done what you ask but am confused. Please help.

Thanks

Anthony

Hi there. You are doing fine. Its possible sync was active when you installed the browser. We can talk about that later.

Yes, sync allows you to share data between different computers and profiles, It's very handy for many users.

FredMcD said

[v57+] Places Maintenance is built into Firefox.

This tests the bookmarks for errors. The report you posted shows no problems.

Keep an eye on your bookmarks. Let us know if the duplicating happens again.

Dear Fred,

Again my thanks.

I shall keep you informed if the problem occurs again.

My browser (Firefox) has been installed ages ago. I am wondering if an update to Firefox caused the problem.

If I have the problem again, how do I get back to you or do I just post another question and hope you see it?

My thanks and best wishes

Anthony

Keep an e-mail from this forum in your mailbox. Or if you need to: Go to the top of any support.mozilla.org web page and press your user icon to see your Mozilla profile. Including your questions and answers.

Dear Fred McD

Hope you see this email.

I am having no more trouble with bookmarks being duplicated.

Thank you so much

Anthony

Hello,

I am glad to hear that your problem has been resolved. If you haven't already, please select the answer that solves the problem. This will help other users with similar problems find the solution.

Thank you for contacting Mozilla Support.

Hello Anthony,

When Fred asked you to press the "Verify Integrity" button : that did the trick.

May I add a personal note ?

I noticed that you mentioned "I'm old" - it may be a cliché, but age is nothing but a number. There are a lot of young people, who are very, very dumb and are stick-in-the-muds - most older people I know are very intelligent and so much fun to be with !

Besides : wisdom comes with age (experience .... )

Dear McCoy,

I mentioned I was old and not computer savvy in case whomever answers my question is a computer expert with a complicated procedure to solve my problem.

Anthony

There is a very effective add-on to find and delete dupes. Bookmark Dupes

I use several machines and I depend on sync. I think the duplicates are created when I fire up a copy of Firefox which has not been used for a month or more.