No idea what the latest version is. I looked for it.
I have Chrome, FF, and ABP browsers on my little tablet.
When reading any article in any app and I click on the link, I am given the choice to open with these choices, as I have different reasons for using different browsers. Chrome opens instantly. I count to thirty seconds before ABP opens almost unfailingly.
Since I am loathe to use any Google-related products, I tend to wait.
What are you doing to improve the embarrassingly slow speed?
Is it possible that it's me only?
Don't think FF is much better...