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A possible fix for slow Flash plug-in loading in Safari Web Browsers
I noticed that Safari was getting a bit slow to load the Flash plug-in the first time in every browsing session. After a quick look in my Internet Plug-ins (/Library/Internet Plug-Ins) folder, I found two files related to the Flash Player. A recent one (Flash Player.plugin) and an old one (flashplayer.xpt). After removing the .xpt file, Safari become far snappier to load flash the first time.

I guess the .xpt file is an old version of the plug-in that I dragged with me during successive installs and migrations; I expect a lot of users may have the same issue. (I had the same problem on my home Mac and my work Mac).
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A possible fix for slow Flash plug-in loading in Safari | 23 comments | Create New Account
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A possible fix for slow Flash plug-in loading in Safari
Authored by: LimitlessX72 on Feb 05, '09 08:22:45AM

also finding that flash performance in general is better and on my 1st gen macbook cpu fan not so busy.


i've renamed the "old version" to something else just incase of problems later



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A possible fix for slow Flash plug-in loading in Safari
Authored by: batmanppc on Feb 05, '09 08:23:51AM

flashplayer.xpt is NOT an older version of the Flash plug-in. It is a component used by the plug-in. You'll eventually run into some flash that will want it and it will fail.

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Mohammad A. Haque
http://www.haque.net/
mhaque()haque.net



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A possible fix for slow Flash plug-in loading in Safari
Authored by: abyone on Feb 05, '09 08:38:41AM
ClickToFlash is the best way to fix a slow flash.

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A possible fix for slow Flash plug-in loading in Safari
Authored by: kikjou on Feb 06, '09 08:03:22PM

Or use SafariStand (look for it on Versiontracker). It allows you to set Flash to load "manually", that is, you are shown a grey image placeholder until you click on it. Since on an average site a lot of Flash videos are adverts, I don't even need to load Flash on a normal day. And SafariStand provides a nifty exemption rule for sites that you want to autoload the Flash plugin for.



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A possible fix for slow Flash plug-in loading in Safari
Authored by: turkchgo on Feb 05, '09 09:27:44AM

I don't think that file is "old". I have that same file in the plugins folder and it's dated October 2008, so it was created and installed with the last flash install.



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A possible fix for slow Flash plug-in loading in Safari
Authored by: joekewe on Feb 05, '09 01:55:22PM

The little file is only 4K, so it is definitely not an old version. Looks like an XPCOM from the first line. You can open it in a text editor.

I can't imagine Flash loads faster without it, and it will probably be missed later.



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A possible fix for slow Flash plug-in loading in Safari
Authored by: chyna4xena on Feb 05, '09 03:38:56PM

It is, as others have said, not an old file, nor an uneeded file. It is the binary interface file for the Flash player plugin.



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A possible fix for slow Flash plug-in loading in Safari
Authored by: zo219 on Feb 06, '09 12:27:24AM

Not to be mean to said submitter, but isn't anyone reading these things for simple inaccuracy, anymore? This is not the site as I recall it in past years.



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A possible fix for slow Flash plug-in loading in Safari
Authored by: metiure on Feb 06, '09 03:51:32AM

agreed



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A possible fix for slow Flash plug-in loading in Safari
Authored by: leamanc on Feb 06, '09 09:58:12AM

Where is [robg says: I haven't tried this one.] ?



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A possible fix for slow Flash plug-in loading in Safari
Authored by: gshurley on Feb 06, '09 04:08:32AM

I am certainly no expert in flash, but I tried this hint and Safari is running much faster for me. The past few months have been a sluggish nightmare on pages with flash, especially the first-daily visits of certain sites. Flash would hang for 5 to 15 seconds while I watched the spinning wheel, causing my blood pressure to increase. Now those hesitations are gone, flash is still working (so far), and I feel more relaxed without seeing the spinning wheel :) I don't care if flash does not always work. Flash is far too often unnecessarily overused.



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A possible fix for slow Flash plug-in loading in Safari
Authored by: etbozo on Feb 06, '09 06:15:12AM

This seems to have solved serious problems in our classrooms after updating Flash and re-imaging for the Spring semester. My personal Mac browsers working much better now. Thanks.



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A possible fix for slow Flash plug-in loading in Safari
Authored by: robleach on Feb 06, '09 07:29:45AM

I understand the debate, but I don't think anyone whose posted thus far really knows 100% what the file is for. However, I can attest that removal of the file (I just added a bogus file extension so I can return it to normal later if needed) indeed greatly improves performance. Whenever I was playing scrabble on facebook and then started up pandora, flash would always slow everything way down, making the scrabble interface unusable and no music would play either for minutes or until a message would come up with a flash error and not play at all. Changing the file name caused me to open both flash apps instantly with no delay!



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A possible fix for slow Flash plug-in loading in Safari
Authored by: Felix on Feb 06, '09 03:29:26PM

@robleach

"...I don't think anyone whose [sic] posted thus far really knows 100% what the file is for."

What led you to that conclusion? Appeared to me there were some pretty knowledgeable folks weighing in.



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flashplayer.xpt is needed for scripting support
Authored by: lynxie on Feb 06, '09 05:02:48PM
Apparently, flashplayer.xpt is needed for scripting support.

Visit http://kb.mozillazine.org/Flash and about half way down the Windows section: "flashplayer.xpt [...] (for scripting support)."

It's also referenced here:
http://forums.mozillazine.org/viewtopic.php?p=309160&sid=006a6cd112b31a2955252261443bad2f#p309160

Even though it's mentioned in the Windows section, I bet it's still needed on the Mac side (see http://www.adobe.com/devnet/flashplayer/articles/flash_player_admin_guide/flash_player_admin_guide.pdf) .

Now the real question is "What kind of scripting support?". I think I'll start digging around the Adobe site: http://www.google.com/search?hl=en&q=site%3Aadobe.com+"flashplayer.xpt";

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A possible fix for slow Flash plug-in loading in Safari
Authored by: palahala on Feb 07, '09 04:38:19AM

Wouldn't life be great if removing this scripting support only gets rid of those Flash cookies (Local Shared Objects) and does not prevent the actual usage of flash?

To me, the hidden Flash privacy abuse alone is a reason to hope for alternatives. However, during some testing I did, disabling these cookies seemed to make some Flash sites load a lot slower, or not load at all. Odd: choosing "Always deny" would not start flash on some sites, but using "Always ask" for the very same site would actually make the flash start when the "... is requesting permission to store information on your local computer" dialog was still shown, after which denying access would then not stop the already running flash... This makes me wonder if scripting was involved, so if I can find those sites again I will certainly experiment a bit!



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A possible fix for slow Flash plug-in loading in Safari
Authored by: piyayo on Feb 07, '09 11:35:44AM

This is like trying to fix the yellowness of yellow. Flash on the mac feels different than on the PC, it's slower and uses far more CPU, (not just when loading) and it's always been that way, so I recommend trying to avoid it instead of fixing it. Clicktoflash is the best way right now IMO. There is very little softwarewise that you can do on a mac that will have such an impact on performance systemwide, especially if you use a lot of tabs and like to keep the browser up for as long as possible.



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A possible fix for slow Flash plug-in loading in Safari
Authored by: neilkachu on Feb 09, '09 01:20:59AM

Hi,

Dont shoot me but im a a Flash developer ( no banners though!).
Looking at the contents of this file it would seem to be the support for the legacy AS1 Javascript>Flash scripting. This is was deprecated as of flash version 7 ( we're on v10 now) in preference of ExternalInterface so unless you're browsing sites made over 4/5 yrs ago I doubt youll come across any problems.



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A possible fix for slow Flash plug-in loading in Safari
Authored by: etbozo on Feb 23, '09 08:20:13AM

If your browsers were set to "Open in Rosetta" for older Flash Player versions on Macs with Intel CPUs, that causes serious problems too. Reset these to open the browser normally for every browser and every user.



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A possible fix for slow Flash plug-in loading in Safari
Authored by: mahers on Aug 19, '09 06:38:44PM

The best thing I found is to delete everything that is named Flash in my Home preferences folder



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A possible fix for slow Flash plug-in loading in Safari
Authored by: nayf87 on Dec 27, '09 04:19:20AM

Nice one. Flash has been the bane of my life until this fix! Thank you so much great improvement. The newer version is obviously a lot more optimised for the newer version of OS X!



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A possible fix for slow Flash plug-in loading in Safari
Authored by: mfhayes on Jan 21, '10 02:29:15PM

I registered with this forum to comment on this thread.

I have an iBook G4, and was so sick of flash looking terrible and had tried reverting to flash 9 and 8. Version 8 was the only one that ran smoothly, but of course it wasn't compatible with anything but youtube... and the videos looked like they did when youtube first started.

So I figured I'd just have to live with choppy videos in flash 10 until I could get a new computer.

I came across this thread and figured it couldn't hurt to try deleting the .xpt file.

I'm completely amazed. That did the trick!

Before, I had to keep my mouse still and refrained from having multiple tabs open to watch a video. Now, even hulu looks smooth!

Thank you so so so much!



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A possible fix for slow Flash plug-in loading in Safari
Authored by: bachiano on Feb 26, '10 09:29:23AM

this worked - Thanks



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