Enable searching by regular expression

[edgimar]

I know that in the documentation it states that this is unlikely to ever be supported because FF doesn't support it, but it should be possible to not depend on FF's search function -- see, for example, https://github.com/mortalis13/Regex-Find for code which does this.

[timss]

Would certainly be a useful feature. If you're up to the task, please feel free to give it a shot and submit a PR.

Without looking at the code of the referenced addon, one possible alternative workaround could be to wrap any internal functions (if any) it supplies into a function/command in Vimperator instead.