This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

How do I return to a previous version of firefox?

  • 2 replies
  • 34 have this problem
  • 4 views
  • Last reply by cor-el

more options

Occasionally, when there is a firefox update, it resizes my browser page so that the text is tiny. Sure I can hit ctrl and scroll up, but this just resizes the current page I'm on. This has happened to me once before, and I had to reload a previous version of firefox.

Occasionally, when there is a firefox update, it resizes my browser page so that the text is tiny. Sure I can hit ctrl and scroll up, but this just resizes the current page I'm on. This has happened to me once before, and I had to reload a previous version of firefox.

All Replies (2)

more options

It was a simple fix. I reloaded 3.5 and the problem is solved. Unfortunately every once in a while there is the same issue with updates. I have talked to the live chat for firefox and as much as they want to blame my system, they cant give me a real solution to this problem.

more options

You can increase the String pref layout.css.devPixelsPerPx from 1.0 to 2.0 in 0.1 steps to see what works best.

In Firefox 3.6 and later this pref is a String value parsed to a float and allows to fine tune the dimensions of all elements more precisely.

To open the about:config page, type about:config in the location (address) bar and press the "Enter" key, just like you type the url of a website to open a website.
If you see a warning then you can confirm that you want to access that page.


Your above posted system details show outdated plugin(s) with known security and stability risks.

  1. Shockwave Flash 10.0 r32
  2. Next Generation Java Plug-in 1.6.0_21 for Mozilla browsers

Update the Flash plugin to the latest version.

Update the Java plugin to the latest version (6 U22).