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Firefox is unbearably slow after updating to version 27

After updating to Firefox 27 all webpages take a few dozen seconds to several minutes to load. When loading a webpage Firefox's status displays "connecting" and the CPU … (xem thêm)

After updating to Firefox 27 all webpages take a few dozen seconds to several minutes to load. When loading a webpage Firefox's status displays "connecting" and the CPU gets maxed out with 95 to 100% of its cycles taking by Firefox.

The computer is older so it is a little slow but Internet Explorer 8 has no trouble opening the webpages and neither do other computers on the LAN so it is not a network issue. I have tried restarting Firefox, disabling add-ons, deleting add-ons, disabling hardware acceleration, restarting the computer, and reinstalling Firefox after wiping every trace of it and its user data from the hard drive and registry.

CPU: AMD Athlon 2800+ 2.08GHz RAM: 1GB OS: Windows XP Home Edition Service Pack 3 32bit


Comments by a forum moderator.
(Modified April 30, 2014 12:11:58 PM BST by John99 ) ~J99
Rather a long thread so I will add some comments here where easily seen.

 Modified June 18, 2014 6:08:41 AM PDT by John99

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Trả lời lần cuối bởi petef 6 năm trước

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Can't restore previous session - lost all of my open tabs

I have the most recent version of Firefox (29, I think) and when I just went to open my browser, my previous tabs were all gone. I have opened Firefox at least twice sin… (xem thêm)

I have the most recent version of Firefox (29, I think) and when I just went to open my browser, my previous tabs were all gone. I have opened Firefox at least twice since I updated to the latest version and everything has been fine. The option to 'Restore previous session' is greyed out. I have tried going to the sessionstore.js and click on 'Previous Sessions' but it was empty. I tried to go into this folder again and received the follow error:

Script: c:\users\(name)\appdata\roaming\mozilla\firefox\profiles\goa9m6ih.default\sessionstore.js Line: 1 Char: 11 Error: Expected ';' Code: 800A03EC Source: Microsoft JScript compilation error

I had about 20 tabs open and am just sick that I lost them all.  The startup for FF is still set to 'Use my tabs from previous session'.  Help!

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Trả lời lần cuối bởi AOK1 6 năm trước

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Firefox memory leak causing slow and stuttery performance

So recently my Firefox browser has been leaking memory like crazy going up to 1.7 GB in used RAM. It starts off fine when I first open it, but progressively gets worse ov… (xem thêm)

So recently my Firefox browser has been leaking memory like crazy going up to 1.7 GB in used RAM. It starts off fine when I first open it, but progressively gets worse over time, making scrolling a choppy and painful task. This started with version 28.0 but I've since upgraded to 29.0 and the problem persisted. I've done hours of research on the problem and have tried all the following solutions, to no avail:

- Turning off hardware acceleration/smooth scrolling/auto scrolling - Creating a new profile - Completely uninstalling and reinstalling Firefox - Running it in safe mode (still lagged, even in safe mode!)

Has anyone found any real solution to this problem?

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How can I prevent Firefox from automatically updating?

Hello, I am trying to prevent Firefox 28 from automatically updating to Firefox 29 (on OSX 10.7.5). I have the option "Never check for updates" checked under 'Update' in … (xem thêm)

Hello,

I am trying to prevent Firefox 28 from automatically updating to Firefox 29 (on OSX 10.7.5).

I have the option "Never check for updates" checked under 'Update' in the 'Advanced' Preferences. I have "Automatically update Search Engines" unchecked. I have uninstalled Firefox 29 completely using two separate uninstall clean-up kits and emptied the trash before re-installing Firefox 28... Yet every time I finally re-arrange, customize and re-sync Firefox 28 back to the way I like it, I restart my Mac and Firefox 29 rears it's over-drawn, bubbly, space-wasting, UN-SYNCED, ridiculous tabs on top nonsense user interface.

I've tried to work with Firefox 29 but the new SYNC simply does not work and that's a deal breaker. I need the changes I make on my mac to be reflected across the other two systems on my desk (one WinXP, one Win7) and vice versa. When I try to sync on FF29 it takes me to a page to log in and then refuses to recognize my email and password (which I have thoroughly confirmed on my other systems as correct).

Can you please help me prevent Firefox 28 from automatically updating to Firefox 29?

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how can I change my encoding to Unicode(UTF-8)?

I have recently updated to firefox29. I need to change the encoding to Unicode(UTF-8) to read my emails in my own language. I cant see the UTF-8 choice in encoding part.p… (xem thêm)

I have recently updated to firefox29. I need to change the encoding to Unicode(UTF-8) to read my emails in my own language. I cant see the UTF-8 choice in encoding part.please help me.

Đã được hỏi bởi masoud_manutd 6 năm trước

Trả lời lần cuối bởi sisozhekov 6 năm trước

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I get no sound on Vine or Instagram. Why?

I can't get sound to play on any videos on Instagram & Vine. The videos play fine but sound will not. I have no sound issues on any other websites besides these two. … (xem thêm)

I can't get sound to play on any videos on Instagram & Vine. The videos play fine but sound will not. I have no sound issues on any other websites besides these two. However when I go to Vine or Instagram on Safari or Internet Explorer the sounds play fine. Why is this so?

I've done the following to try and fix the issue with no success: Checked my mixer to make sure volume isn't muted. Cleared my cache. Updated plug-ins.

Đã được hỏi bởi HamlinRacing 6 năm trước

Trả lời lần cuối bởi WyRe 6 năm trước

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Firefox 29 is painfully slow

What happened with Firefox 29? It is PAINFULLY slow. Sometimes switching between tabs takes a matter of seconds. Have a video running and FF often times out when switc… (xem thêm)

What happened with Firefox 29? It is PAINFULLY slow. Sometimes switching between tabs takes a matter of seconds. Have a video running and FF often times out when switching between tabs and needs to be shut down.

Not running a slow or overloaded system by any means. Something is very wrong with this update.

Any idea how to fix this or degrade to FF 28, which worked amazingly well?

Đã được hỏi bởi alcahuete 6 năm trước

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Adblock not working

G'day, Yesterday I updated Firefox to which ever is the most current version (29) I have always had adblocker on my Firefox and it normally works and yesterday it was wor… (xem thêm)

G'day, Yesterday I updated Firefox to which ever is the most current version (29) I have always had adblocker on my Firefox and it normally works and yesterday it was working fine pior to the update. However it doesn't appear to be working at all as I am getting ads on YouTube video's, one of the things adblocker is meant to remove as well as standard annoying adverts on many of the webpages I have visited, and visit regularly, which previously adblocker had dealt with and removed.

The first thing I did, as Ive heard that folk can get adverts from malware, I ran a security check of my system and it was all clear, no issues what so ever, so what I am wondering is if adblocker itself is needing updating or if there is something I am required to do ect.

Many thanks, Jim

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Trả lời lần cuối bởi cor-el 6 năm trước

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How do I set Firefox 29 to always show the bookmarks sidebar with one click instead of a drop down menu?

I've decided to just get used to Firefox 29 instead of messing with add-ons and what not to make it look like it used to but one thing that is too ingrained is a favorite… (xem thêm)

I've decided to just get used to Firefox 29 instead of messing with add-ons and what not to make it look like it used to but one thing that is too ingrained is a favorites/bookmarks sidebar with one click. I just don't like the drop down menu. Is there a way to set the "Bookmarks" button to show the sidebar in one click?

Đã được hỏi bởi Koyol 6 năm trước

Trả lời lần cuối bởi cor-el 6 năm trước

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Ever since Firefox updated itself to 29.0.1 Flash constantly crashes.

I did a clean install of Firefox, I updated Flash to 13, and I disabled almost every plug-in. Flash still crashes constantly. I will have no choice but to abandon Firefo… (xem thêm)

I did a clean install of Firefox, I updated Flash to 13, and I disabled almost every plug-in. Flash still crashes constantly. I will have no choice but to abandon Firefox because it is unusable like this.

Đã được hỏi bởi moreofless 6 năm trước

Trả lời lần cuối bởi Dave71 6 năm trước

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Hiding the address bar

The previous version of firefox allowed me to hide the address bar. This was useful as I use multiple windows and like to keep them tidy and conserve space. Is there any … (xem thêm)

The previous version of firefox allowed me to hide the address bar. This was useful as I use multiple windows and like to keep them tidy and conserve space. Is there any way I can now hide the address bar?

Đã được hỏi bởi MarkakaDream 6 năm trước

Trả lời lần cuối bởi cor-el 6 năm trước

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I can't change my new tab page !

I can't change my newtab page , I followed the steps in an article in the support but still not working and i can't change it  !! i went to about:config and try to modify… (xem thêm)

I can't change my newtab page , I followed the steps in an article in the support but still not working and i can't change it  !! i went to about:config and try to modify the url for the new tab page and when i press ok nothing happens .... Please Help

Đã được hỏi bởi gorgui 6 năm trước

Trả lời lần cuối bởi gingershavenosoul 6 năm trước

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How do I remove feed.helperbar showing as yahoo or websearch

I installed it as part of a package but its obviously malware, tried everything from manual file deletes to the options in firefox, including the about config and re-sett… (xem thêm)

I installed it as part of a package but its obviously malware, tried everything from manual file deletes to the options in firefox, including the about config and re-setting the highlighted options with any similar names it wouldnt let me reset the rest that were not in bold. Man this is a nightmare to get rid of!

Please help

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Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.

I attempt to open firefox and despite firefox NOT being open I get the following message "Firefox is already running, but is not responding. To open a new window, you mu… (xem thêm)

I attempt to open firefox and despite firefox NOT being open I get the following message "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system."

Once restarted it works fine but does re-occure

Đã được hỏi bởi 2medusa 6 năm trước

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Tabs opening on their own, attempting to connect to "About:xxyyzz"

Starting about a week ago, seemingly at random tabs will open on their own. They always try connecting to the URL mentioned in the title. Now, this obviously won't resolv… (xem thêm)

Starting about a week ago, seemingly at random tabs will open on their own. They always try connecting to the URL mentioned in the title. Now, this obviously won't resolve because that isn't a valid URL. This only seems to happen when firefox is already open, and isn't affected by running firefox in safe mode. I've ran some scans and haven't found anything, I've been through my startup processes and nothing is amiss there either. I feel I should also mention that this is only happening in firefox, I've left Internet Explorer open for a few hours to see if anything would happen and nothing did. Funnily enough it's just happened in the time it's taken me to type all of this out. That's about all I can think to add. I hope someone can get to the bottom of this.

Đã được hỏi bởi SWZT 6 năm trước

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How do I suppress "plugin container for firefox has stopped working" ?

I am doing some Flash programming and using Firefox to debug. Every time I end the debug session from Flash Builder I get the error "Plugin container for firefox has stop… (xem thêm)

I am doing some Flash programming and using Firefox to debug. Every time I end the debug session from Flash Builder I get the error "Plugin container for firefox has stopped working". Is there a way to suppress this false error message? There is not a problem with the container or any plugins, simply that Firefox thinks the container has crashed because it is being closed by the IDE. I have already had to change several options to suppress false error alerts, but just seem to get new ones like this.

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