We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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.

ابحث في الدعم

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

why does my resolution (or font size, or whatever) suddenly grow or shrink for a given web site while browsing?

  • 1 (رد واحد)
  • 2 have this problem
  • 2 views
  • آخر ردّ كتبه janisjimi

more options

I recently installed Firefox on a new Toshiba notebook, and have had one web site unexpectedly shrink, twice, and another one grow, as I'm browsing. When I leave and come back later, the particular site, but no others, is still affected. Am I inadvertently doing something to cause this?

I recently installed Firefox on a new Toshiba notebook, and have had one web site unexpectedly shrink, twice, and another one grow, as I'm browsing. When I leave and come back later, the particular site, but no others, is still affected. Am I inadvertently doing something to cause this?

All Replies (1)

more options

OK, so I've just learned that I can reset the size change using control-0(zero). But the size up or down is enabled by control-+ or control--, and I'm not doing those -- it seems to be caused by something my fingers are doing on the cursor pad, since I'm not touching the keyboard as I'm browsing. Any thoughts as to what is causing this?