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Confused: Certain sites will NOT accept Firefox Browsers

R. E. Gullion
R. E. Gullion
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Do automatic updates. I am elderly and the technical jargon is making me nuts!

Ancestry.com will not allow me to use Firefox browser. Either the iPhone browser hasn’t been updated or there is a firewall blocking the site.

I need help.

Do automatic updates. I am elderly and the technical jargon is making me nuts! Ancestry.com will not allow me to use Firefox browser. Either the iPhone browser hasn’t been updated or there is a firewall blocking the site. I need help.

All Replies (1)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
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I don't know whether this is the issue, but maybe:

Another user noted a change in Firefox 34.2 for iOS: the browser now explicitly includes iPhone' in its user agent string, which is a browser identification string sent to sites when you request pages/files.

Mozilla/5.0 (iPhone; CPU iPhone OS 14_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/34.2 Mobile/15E148 Safari/605.1.15

Sites that didn't previously realize you were using an iPhone may now suddenly become aware of that, for better or for worse, and treat Firefox more like Safari.