I am trying to get LastPass working with konqueror 4.8.3 on Arch.
I have the kong-plugins installed.

On any page other than about: Tools -> Minitools is not there.
If I enable the Extra toolbar Minitools is there on "about:" but disappears as soon as I go to another page.
The same thing happens to the "AdBlock" and "Archive Web Page..." tools

Is there a trick to get Minitools to stay enabled?

I've found that the minitools and other tools (like Archive and AdBlock) and only become available to me if I view web pages in KHTML mode (and not WebKit).

That worked thanks!
But man webkit works way better for me than khtml.

Great! You're welcome; glad I could help.

Actually, since the last update, Konqueror and KHTML has been working much better for me and the website I visit. Konqueror used to crash on me every time I tried to use it, but it hasn't crashed on me since the last update (4.8.3).

Hi!
I have the same problem, since some webpages didn't work how they suppose to do when I browse with khtml render engine.
I liked to use "archive webpage" on those days when KDE 3.x was used, and now I miss this tool when I browse with konqueror and using webkit render engine.
Is some trick/patch/plan to add those features when the render engine is webkit?, or only work and keep working just with khtml selected?

Thanks and regards.

Edit: Here appear like I'm using kubuntu. Right now I'm using openSuse, if this help or something.

Unfortunately i'm not aware of anything, however if you follow the webkit-devel@kde.org mailing list (see https://mail.kde.org/mailman/listinfo/webkit-devel) then you should find out when this is implemented.