Setting screen timeout when browsing

I know that it's a often asked question, however, none of the answers are applicable to me. I read [this](https://android.stackexchange.com/questions/7788/how-to-disable-screen-timeout-for-a-particular-program-only) , [this](https://android.stackexchange.com/questions/4595/screen-timeout-when-reading) and [this](https://android.stackexchange.com/questions/10223/change-screen-timeout-to-never) answers, but some apps (like Screebl or Keep Screen Lite) are non-existent already and some (Tasker) are not working for me. The most proposed solution is Tasker, however I tried it and it messes my display settings which is even worse than the lack of dynamic timeout. It doesn't return timeout setting to default state which then drains my battery and is also very irritating. Seems to be a bug. My question is: do you know a **native MM way** to dynamically set up timeout while browsing? Or maybe a web-browser app that have **built-in** ability to disable timeout? I tried searching descriptions of apps, but this option is rarely highlighted, and, personal experience is highly appreciated. Have anybody met such app?