WhatsApp Web says that I need Firefox 115 or higher, even though I am using Firefox.

Hello, I am having a problem with WhatsApp Web in Firefox on my Android phone. When I open web.whatsapp.com, it says “WhatsApp works with Mozilla Firefox 115+” and asks me to update Firefox or use another browser. I would like to use WhatsApp Web with Firefox. Please help me fix this issue. Thank you.

Hello, I am having a problem with WhatsApp Web in Firefox on my Android phone. When I open web.whatsapp.com, it says “WhatsApp works with Mozilla Firefox 115+” and asks me to update Firefox or use another browser. I would like to use WhatsApp Web with Firefox. Please help me fix this issue. Thank you.

There is a forum for Android

https://support.mozilla.org/en-US/questions/mobile

When I open WhatsApp Web in Firefox on my Android phone, it shows a message saying “WhatsApp works with Mozilla Firefox 115+” and asks me to update Firefox or use another browser. I want to use WhatsApp Web with Firefox. Please help me fix this issue.

If the web whatsapp sites is saying you need Firefox 115 or later to use it then that likely means you are using a older version of Android Firefox below 115.0. Whatsapp has made the minim,um requirement of needing Firefox 115.0 or later since November last year for their web whatsapp site.

https://support.mozilla.org/en-US/kb/update-latest-version-firefox-android

Since you mentioned it was about Firefox for Android I moved this thread from (desktop) Firefox to the Firefox for Android forum section.

What is the Firefox version? You can find it in Settings -> About Firefox.