Disable Firefox Domain Sticky Zoom to Reset Zoom Level on Re-Visit

Firefox can zoom in and zoom out on a web pages by pressing Ctrl-+ or Ctrl– keys combination, or by selecting appropriate command in View -> Zoom menu. In Firefox 3, zoom features now magnifies or reduces the size of both text and images.

Beside, zoom function in Firefox 3 also remember the last used zoom level on a domain, and automatically open any web pages from the domain at the zoom level. For example, if you increase the size of text and image on mydigitallife.info by 1 zoom step, Firefox will remember the zoom level. The next time the reader visits mydigitallife.info domain or any page from the domain, the page will be displayed at 1 zoom in step.

If you use zoom function just for temporary reading, and would prefer Firefox to display an new pages at normal zoom or default size, regardless of what the page from the domain is displayed on last visit, here’s the trick to hack the Firefox zoom feature.

Type about:config in the Location Bar. Search or filter for browser.zoom.siteSpecific preference name, then double click on the preference to change its value to false (by default is “true”).

Voila, all new pages on Firefox tab or window now get reset to base normal zoom level.


This entry was posted on Thursday, July 3rd, 2008 at 4:50 am and is filed under Web Browsers. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

12 Responses to “Disable Firefox Domain Sticky Zoom to Reset Zoom Level on Re-Visit”

  1. dave
    July 2nd, 2009 06:13
    12

    I’m having the same issue with IE7. It automatically zooms to 10% on all sites I visit. Anyway to set this back to normal?

  2. A5
    April 16th, 2009 13:23
    11

    This fixed countless problems for me. I was using phplot to generate graphs and charts for some inhouse solutions, and they constantly appeared to be rendering incorrectly. I spent hours up hours reading through the documentation, checking the web server etc. Thanks for the article!

  3. grrr
    March 28th, 2009 20:06
    10

    I wish the zoom actually worked as advertised on one site I use a lot, it constantly resets itself when I go page to page.

  4. anomolous
    January 31st, 2009 07:57
    9

    i’ve been trying to turn this stupid feature off for weeks. THANK YOU!!

  5. Rainer
    January 23rd, 2009 19:26
    8

    automatical zooming is bullshit.

  6. alsdfj
    January 6th, 2009 15:52
    7

    Damn, I want it to text-zoom ALL pages UNLESS I “unzoom”… sux

  7. luli
    November 6th, 2008 05:14
    6

    I zoom the page accidentally mostly by pressing ctrl key and mouse scroll, so on configuration page (about:config) change action of middle mouse button with ctrl key:
    mousewheel.withcontrolkey.action set to 0 (nothing)

  8. Silviu
    October 27th, 2008 04:20
    5

    “I have just wasted 2 hours because of the Zoom feature “remembering” an accidental zoom out on a design work area. I was pulling my hair out wondering why the page was rendering incorrectly, thinking it was some problem with my machine, or the CSS has changed somehow, or a page change being cached, or the setup of our web server! Grrrrrr!!!”
    Same here! :D Many thanks.

  9. Suan
    October 18th, 2008 04:36
    4

    Thanks so much for this post! Firefox should include this preference in the “options” settings…

  10. UKJim
    October 13th, 2008 19:33
    3

    I have just wasted 2 hours because of the Zoom feature “remembering” an accidental zoom out on a design work area. I was pulling my hair out wondering why the page was rendering incorrectly, thinking it was some problem with my machine, or the CSS has changed somehow, or a page change being cached, or the setup of our web server! Grrrrrr!!!

  11. rony_o
    July 31st, 2008 14:17
    2

    What I don’t like about changing this preference is that when I zoom on a page and then hit the back button, my previous page is zoomed also. I find that annoying, I prefer to leave this preference as it is.

  12. HRC McCain
    July 4th, 2008 23:42
    1

    Thank goodness you posted this information. I noticed this morning that despite a window wash that Firefox remembered something about sites I had visited. I searched an hour trying find out how to turn off site specific zoom. It is a privacy concern and any site specific information should be able to be cleared by the clear private data function. I wonder what other sticky information is in Firefox. But thanks again for your timely information

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