tłumacz
You can use WebTools, it's an addon that gather the most useful and basic tools
such as a translator,a synonym dictionary, a dictionary, a youtube convertor,
a speedtest and many others (there are ten of them).
You can access them in two clics, without having to open a new tab
and without having to search for them !
-Chrome Link :
https://chrome.google.com/webstore/detail/webtools/ejnboneedfadhjddmbckhflmpnlcomge/
Firefox link : https://addons.mozilla.org/fr/firefox/addon/webtools/
Cheerful Cormorant