Well, you can get just about any version from https://download-installer.cdn.mozilla.net/pub/firefox/releases/ ;although, I don't see a 97.1 version. I do see a 97.0.1 version.

''<p>lucky.webbnix [[#question-1414844|said]]</p>'' <blockquote>I need Mozilla firefox 97.1 version to do some bug testing on my website. </blockquote> Such a specific older version of Firefox as in 97.0.1 Released back on February 17, 2022 as there was also the 97.0.2 update then. Unless you know the basics of installing Firefox in separate folders and using Firefox with separate Profiles (should not share between 97.0.1 and 113) you may be better with the portable Firefox 97.0.1. https://sourceforge.net/projects/portableapps/files/Mozilla%20Firefox%2C%20Portable%20Ed./Mozilla%20Firefox%2C%20Portable%20Edition%2097.0.1/ Current portable Firefox release is [https://portableapps.com/de/apps/internet/firefox_portable here] The portable Firefox uses the official Firefox builds (they have permission) with a custom launcher that keeps things self contained as you can run it completely off a usb flash driver for example and will not touch any Firefox installs you have. ''<p>MarkRH [[#answer-1583592|said]]</p>'' <blockquote> I don't see a 97.1 version. I do see a 97.0.1 version. </blockquote> People not used to Firefox versions may forget a period or omit the zero. Only the Extended Support Release or ESR has the second number updates (when released alongside the major Releases) like for example the current Firefox 102.11.0 ESR.