Not quite what you asked, but perhaps interesting either way: I recently made an extension that keeps text only copies of all visited sites for offline usage [1].
No full text search included. Might be that grepping through the extension data is reasonably fast, even with multiple years of browsing history, however. I too see this data as valuable, so it's probably better to start capturing now and migrate somewhere else later, rather than wait for your desired browser to implement it.
No full text search included. Might be that grepping through the extension data is reasonably fast, even with multiple years of browsing history, however. I too see this data as valuable, so it's probably better to start capturing now and migrate somewhere else later, rather than wait for your desired browser to implement it.
[1] https://addons.mozilla.org/en-GB/firefox/addon/local-cache/