Problem with entering the category from the main menu on Mozilla Firefox 91.0 in Incognito mode

[Checkk]

Hi 

On the website of the store placed on PrestaShop 1.7.6.1 after updating the browser Mozilla Firefox up to version 91.0 in Incognito Mode I cannot enter to category or any tab in main menu of the store by left-clicking as if left clicking the mouse did not cause any action. |
The shopping cart in the main menu, as well as the rest of the home page, "click" correctly. Right-clicking and opening a link / tab / category in a new tab opens correctly. On Mozilla Firefox 90.0 and other browsers (Google Chrome, Opera, Microsoft Edge) the problem does not occur at all. Same on the other websites like for example facebook, google, pinterest, left-clicking works on Mozilla Firefox 91.0.

Has anyone had the same problem and was it somehow solved? 
What can cause this problem?

[Checkk]

 

Hi,

We check Incognito mode just because when we introducing changes to PrestaShop, we can see how store users see the page before refreshing the cache. 
 

[Checkk]

Oh, and now we have also a problem with the shopping cart. The site does not respond to left-click on the "Proceed to Checkout" button in the side-slide shopping cart. Here it does not work WITHOUT INCOGNITO MODE. 

[Pandal]

Can you link the website so I can check the html and js and trying to help you?

 

Edited August 18, 2021 by Pandal (see edit history)