I don't want to presume anything about your work flow, but Firefox offers several ways you an open links in a new tab:
* Middle click * Right click, open in new tab, * Ctrl-click I'm not sure if you knew that already or not. Regardless, I am not able to replicate this issue on Firefox 56 on Ubuntu 16.04 LTS. I tried replicating the issue both with the forum search and the documentation search. With both, the back button took me back to the results. This may be an issue specific to windows. You could also open an issue here: [https://github.com/nim-lang/website](https://github.com/nim-lang/website) on the repository. I'm sure a pull request would be appreciated!
