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Does a lot of bookmarks slow down Firefox?

by qqqq88 / November 5, 2010 2:19 PM PDT

Does having a lot of bookmarks(a lot of which are in folders on the toolbar) slow down Firefox performance? What do you think?

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No. Not really
by MDFlax / November 5, 2010 11:00 PM PDT

The Bookmarks file is just an html file and is very small compared to others on your system, in the KB range, not MB or GB. In essence it is just a database, and so it just sits there until you call it up when you list your bookmarks.

Personally I don't have my bookmarks on the toolbar, but only because I prefer my browser window to be uncluttered.


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Bookmarks & Firefox
by geomurray / November 19, 2010 9:47 AM PST

The Monzilla/Firefox system will slow your computer down no matter what. I've been working on computers for 35 years (experience counts)and found that the folks that stayed with Internet Explorer had far fewer problems. Bookmarks/Favorites do not in general slow down any system. I have well over 100 in my list and my system runs like a charm...running IE 8 with Windows 7

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Please address the question being asked
by petroniusto / November 20, 2010 4:38 AM PST
In reply to: Bookmarks & Firefox

I think the question is do BOOKMARKS slow down FIREFOX. I don't think anyone asked anything about whether Firefox is better or worse than IE. And that question, sir, is open to debate. The people with IE have not had less problems with viruses, trojans or malware that is directed specifically at IE users. Anyway, if you have been working with personal computer performance issues for 35 years, you know that what is at issue is using whatever products you have in an informed fashion and being prepared to make the changes that are required to update, patch, clean and protect your system when it requires these changes. None of this has ANYTHING to do with BOOKMARKS, thank you very much.

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Bookmarks & Firefox
by mca824 / September 3, 2012 1:59 AM PDT
In reply to: Bookmarks & Firefox

I'm sorry but I have to comment on "Monzilla /Firefox system will slow your computer down".First let's start with the correct spelling "Mozilla" Nifty little feature Firefox has correct spelling Happy I've personally used Firefox/Google Chrome/and I.E..and Firefox out performs them in every aspect in every way!From Speed all the way down to it's add-on's Not to mention it's " A Free Open Source Application" ! Now as to the Question "Can bookmarks slow your computer down".Yes they can !Although it's somewhat of a small file your browser read's it every time it opens a window.They don't just sit there they are part of your browser's file that it read's every time you open it!

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Bookmarks slow you down?
by Doh_1 / November 19, 2010 11:11 AM PST

No, not unless you use them *smile*. Having a lot of bookmarks will slow you down, even though it doesn't slow your computer down. Unless you're really well organized, you won't be able to find bookmarks very quickly if you have a lot of them. There are various ways to deal with this, but it's always a good idea to get rid of the dead ones, and don't let them accumulate.


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by oceansoul63 / January 8, 2016 10:50 AM PST

I have Googled this question at various points over the years, and I must say I am annoyed at how many "experts" don't even address the question but instead use it as an opportunity to show off what they think they know.

I can only tell you my own experience, without any nerdy jargon. I have found that YES, having too many bookmarks does slow down your browsing experience quite noticeably. I use Firefox and Chrome, and I clean my registry at least one a week with Glary Utilities.

I am also a bit of a bookmarks hoarder. Often, if a page is interesting to me, I save it as a bookmark, probably adding dozens per week, sometimes just because I'm lazy and want to come back to that page.

Once I've got about 100 bookmarks, I notice that my browser starts feeling very clunky. So, I go to my bookmarks, save them in HTML form to a folder on my computer then delete almost all of them from the browser, leaving just the main ones I visit, about 10-15 bookmarks.

And BINGO, my browser is fast and clean again. I end up doing this about every six months.

So, short answer: YES.

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Bookmarks slow down Firefox?
by adbvir / January 8, 2016 10:15 PM PST

When we save bookmarks in Firefox it doesn’t take much memory. Only duplicate bookmarks can slow down your browser. You will overcome these issues by deleting duplicate files or by reset Firefox.
Delete Duplicate Bookmarks- Go to start menu -> write %APPDATA%\Mozilla\Firefox\Profiles\ (but didn’t press enter). -> Click on the folder you show -> Click on Bookmarks file -> If any duplicate file exist, it seems with duplicate numbers -> Delete these files if exist.
Reset Firefox – Go to Firefox -> Click on Help menu -> Click on Troubleshooting information -> Go to Reset Firefox -> Confirm it to restart Firefox.

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I Don't have a Bookmarks file in my firefox Profile
by Michel Petrucci / April 25, 2016 9:08 AM PDT

Hi adbvir.
I'm sorry but since I changed my Firefox profile's location, I don't have anymore a folder named "Bookmarks file" into it. Only a "Bookmarks Backup" folder. My Firefox version is 45.0.2.
Any other way to find duplicate bookmarks?? Thank you. Wink

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It appears that folk asked that.
by R. Proffitt Forum moderator / April 25, 2016 9:37 AM PDT
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Apparently so
by broken777 / April 4, 2017 6:46 AM PDT

oceansoul63 is right about a couple things. It is frustrating when people show off and don't really help. But more importantly, he/she is apparently right about the answer to the question. I have had a lot of trouble with browsers for a while now. Both IE and Firefox have been ridiculously slow. Sometimes it takes multiple minutes to start a browser. I've disabled all addons, cleared the cache, and other things that google results have told me to do. Then IT gave me a new laptop and suddenly the browsers worked great... until I started settling in and moving all my stuff to the new laptop. After I put in all my shortcuts/favorites, I was back where I started. So google lead me here and oceansoul63's idea of moving favorites out to a folder and cleaning them out of the browser got me thinking. I did that (and in the process discovered I had about 650 favorites) and the browser is now fast as lightning.

Maybe the browser does read them every time it starts? If so, size may not be the relevant number, but quantity. When Windows Explorer searched my favorites folder tree for type='Internet Shortcuts' so that I could delete them and leave the folders, it took forever (30+ seconds). And I assume that wasn't even 'opening' the files, just reading the filename, parsing the extension, and incrementing a counter. If the browser has to do that plus some kind of processing for every one of my 600+ favorites, it probably takes a while. Why does it read them when it starts (my start page is a 'blank' page to try to speed things up)? Who knows - maybe the show-offs can answer that. I don't really care because I have work to do now that my browsers actually work :).

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