is there any option to show question only from my favorite languages ? when i click on QUESTIONS it shows my favorite tags questions in yellow ! but i want to see only questions from my selected languages every time ! is it possible ?
Just bookmark tagged question page in your browser.
or create customized tags at Stack Exchange Tag Sets.
You can import your current favorite tags to Tag Sets, and for more info about tag sets, you may need to take a look more meta question about that here