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Firefox 27.0 very slow to generate new windows with add on: Selfdestructing cookies 0.4.3

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I am upgraded to Firefox 27.0 a few days ago but noticed it was sluggish at opening windows/new windows. I have it running on OSX 8.5 on an iMac with 12gb dram (inc from 6gb recently) and have selected -1 for memory caching and disabled disk caching.

I selectively turned my extensions off and isolated it to the selfdestructing cookies add on, which I have now disabled and speed is back to normal.

I had another problem where some sites couldn't be accessed as though the server wasn't working, although present on an engine search, its cached page could not be accessed either. I didn't think much to it until I tried to access DVLA on the www.gov.uk site. I traced this down to AVAST web shield. In Preferences Advanced turn Scan secured connections off. This restored normal functionality.

I am upgraded to Firefox 27.0 a few days ago but noticed it was sluggish at opening windows/new windows. I have it running on OSX 8.5 on an iMac with 12gb dram (inc from 6gb recently) and have selected -1 for memory caching and disabled disk caching. I selectively turned my extensions off and isolated it to the selfdestructing cookies add on, which I have now disabled and speed is back to normal. I had another problem where some sites couldn't be accessed as though the server wasn't working, although present on an engine search, its cached page could not be accessed either. I didn't think much to it until I tried to access DVLA on the www.gov.uk site. I traced this down to AVAST web shield. In Preferences Advanced turn Scan secured connections off. This restored normal functionality.

Additional System Details

Installed Plug-ins

  • Shockwave Flash 12.0 r0
  • Displays Java applet content, or a placeholder if Java is not installed.
  • The Google Earth Plugin allows you to view 3D imagery and terrain in your web browser.
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime Web site.
  • 5.1.20913.0
  • Adobe Shockwave for Director Netscape plug-in, version 12.0.3
  • Enables the interaction of Mathematica content with the latest installed version of Mathematica.
  • RealPlayer Plugin
  • iPhoto6

Application

  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:27.0) Gecko/20100101 Firefox/27.0

More Information

the-edmeister
  • Top 10 Contributor
  • Moderator
4081 solutions 30829 answers

Email addy for the developer of that "cookies" extension is on the download page.
https://addons.mozilla.org/en-US/firefox/addon/self-destructing-cookies/

Email addy for the developer of that "cookies" extension is on the download page. <br /> https://addons.mozilla.org/en-US/firefox/addon/self-destructing-cookies/

Question owner

Hi, thanks I already did this, no response yet. I have the facility disabled at present as the latency is frustrating.

Hi, thanks I already did this, no response yet. I have the facility disabled at present as the latency is frustrating.