@cgouimet Yes That is the only answer it seems

same happened here opera bombed to desktop randomly and when re opened speed dial is empty.Cant trust this browser with my bookmarks anymore shame

@yanta ahh yes that shit
Dont think its fair to blame opera for that though

I used to see this too
but it got fixed ages ago i think
i dont see it now

I have never seen this behaviour
what do you mean ?

https://addons.opera.com/en-gb/extensions/details/tabs-to-the-front/
try this extension works for me

https://fossies.org/windows/www/Opera_Developer_59.0.3218.0_Setup_x64.exe/ is that it ?

More constructive help maybe
learn to use this so you can see what its up to while its "just sitting there"

https://docs.microsoft.com/en-us/sysinternals/downloads/procmon

@icearity Its just a sign of the times im afraid. programmers/script kiddies nowadays consistently fail in any optimisation. rather blaming you for your crappy pc instead. On their end on their Quantum pc @ -1 Kelvin with 1024 Terrabytes of ram and a (list is endless lol ) it works instantly and all is well.
Im not saying i blame anyone this has been happening since computers were discovered.
It could be:
a slow hard drive,
a bad file somewhere,
a slow website/extension taking too long to handshake

it could be anything

if as you say similar browsers are instant
and i mean similar not chalk n cheese like firefox
then use the alternative
but i wouldnt hold your breathe for any fix of this nature to arrive...
as some Roman idiot once said...
"Caveat emptor" 0r
"noli illegitimi carborundum"