PUBLIC MARKS from decembre with tags problem & firefox

For a few days now Whatsapp web has been asking me to update my Firefox to the latest version. I have a few instances of Waterfox running and this is the only system where this issue arises. Try this: add general.useragent.override.WEBSITE [general.useragent.override.whatsapp.com (or whaterver the address is)] in about:config and set it's value to Mozilla/5.0 (Windows NT 10.0; Win64; rv:60.0) Gecko/20100101 Firefox/60.0 or some other correct user agent. Addon you used might be bad, if above doesn't work you can try uMatrix (at least to test if it will work). If that wont work either, you can try and remove cookies and other local data for that websiteThanks will try that. I am using https://addons.mozilla.org/en-US/firefox/addon/uaswitcher/ which does the trick for other sites like Spotify.

Greasemonkey 4 is changing how it runs user scripts. Many user scripts will continue to run as expected, but this will break some scripts. If you rely on such scripts, you might want to install Violentmonkey or Tampermonkey, both of which provide compatibility for existing scripts. If you'd prefer to stick with Greasemonkey, you'll need to wait for the script to be updated to be compatible. Find the original author of your script, and ask them to update for Greasemonkey 4 compatibility. Referencing this post may help.

Curseur " | " - qu'il y a par exemple dans Word (qui clignote) - je le retrouve partout sur Firefox. Il me suffit de cliquer sur une ligne de texte par exemple pour avoir ce curseur._SOLUTION : __ L'appui sur F7 active ou désactive la navigation au curseur. Cette fonction place un curseur déplaçable dans les pages Web, permettant de sélectionner du texte au clavier. Désirez-vous activer la navigation au curseur ?

Continuously, after a fixed time interval, the browser freezes/becomes unresponsive momentarily, and then becomes responsive again. === TRY : Type "about:config" === Find or locate the preference "dom.min_background_timeout_value" === open up the dialogue box "Enter Integer Value" === change the previous value (which will be y default less than 1000) to a very large value, lets say 1000000