why am I blocked from several website, i,e, lowes, ebay etc.

You haven't provided enough info to even begin troubleshooting... Does this happen with other browsers? Do you have another computer/phone/device that is on the same internet/wifi? If so, is the issue occurring there? If your computer is portable (ie laptop) does bringing it to a place with public wifi solve the issue? What service pack of Windows 7 are you running and do you have TLS 1.2 enabled? What browser extensions do you have installed?

There are a lot of security exploits out there that are not patched in Windows 7, not to mention that more and more stuff will be dropping support for it. My advice is to move to a supported version of Windows, or switch to something like Linux Mint if a new computer isn't in the budget.

Bonjour

Is it these questions

A discussion thread https://support.mozilla.org/en-US/questions/1617371

A discussion thread https://support.mozilla.org/en-US/questions/1616145

Just to see, if you wish to test, r3dfox, https://connect.mozilla.org/t5/firefox-labs/webseite-sein-monaten-nicht-erreichbar/m-p/145474/highlight/true#M5395

For information Firefox release calendar https://whattrainisitnow.com/calendar https://whattrainisitnow.com/release/?version=esr

Firefox support for Windows 7, 8 and 8.1 https://support.mozilla.org/en-US/kb/firefox-users-windows-7-8-and-81-moving-extended-support

As for me, j'ai installé Linux en double-démarrage avec Windows7.

I'm using win7

Keep in mind that the older Firefox 115 ESR is based on the old Firefox 115.0 Release but only with security and stability foxes since with no new features.

Mozilla is keeping this old ESR version alive so the old EOL Windows 7, 8, 8.1 and macOS 10.12, 10.13, 10.14 OS users can still have a secure web browser for the time being. Chrome/Chromium browsers dropped these old EOL OS versions back in Jan/Feb 2023. Firefox 116.0 and later requires Windows 10, 11 and macOS 10.15 or later to run.

So naturally some websites is not going to work well as they expect people to use more current versions.

To complement,

If your current hardware can't handle Windows 10 or higher for some reason, you can switch to a Linux-based operating system. The vast majority of Linux distributions come with Firefox as the default browser. Please see the support websites for the version of Linux that you're interested in.

Install Firefox on Linux https://support.mozilla.org/en-US/kb/install-firefox-linux As for me, System Firefox installation (for advanced users), that's my installation.