I have used Opera (satisfactorily) for many months (maybe years), however, recently, it seems to be suffering from memory restrictions.

Symptoms such as extremely slow opening of some sites and things like BBC News videos 'This content doesn't seem to be working - Please try again later" - yet opening the same site in Firefox works OK.

Max Verstappen looks back at debut F1 season - BBC Sport runs on Firefox but not on Opera.

It seems this operates under Adobe Flash Player - or, at least, it doesn't!

Even closing all other tabs (and windows) doesn't resolve the 'not working' issue (nor does rebooting solve the problem.

I'm running W8.1 on an Aspire E15 Start ES1-512-C50S laptop with Intel Celeron N2840 8GB DDR3 and 1000 GB HD (847 GB free space).

Add-ons to Opera include AdBlock Plus (it seems worse with AdBlock disabled) and Forecast Plus and Google Analytics opt-out and Reminders (though none in effect).

One of the messages that seem to slow the response is something called outbrain IIRC.

What do you suggest?

Stop using Opera ??

G-C, perhaps this following discussion will yield some assistance. If all else fails, downloading a newer version of Opera may cure the problem.

Opera browser gets more laggy over time and videos are choppy

I'm currently using Opera 33.0

I can access PPruNe using Opera - but not post replies - they just 'hang' and won't complete.

I'm just swapping to Firefox to reply.

You might also try Flash Peak Slim Browser, it works very well and can be made to look like a clone of other browsers, imports favourites/bookmarks etc.

The site link below has a "Top Ten" browser comparison, that produces interesting results.
Currently, I'm getting annoyed with Chrome, which has now refused to support Java plug-ins - along with other NPAPI plug-ins.
This means that many sites no longer work properly where Java is used, when you're using Chrome.
Of course, Google claim that NPAPI plug-ins such as Java are unstable and a security risk - however the Google stance against Java has more to do with a bitter lawsuit between Oracle (owner of Java) and Google, over allegations of copyright theft and stolen source code, than any real or perceived instability or security threat of NPAPI plug-ins.

Top Ten Browser Reviews

You might also want to give Vivaldi a try - it's basically what Opera used to be before they went all chrome copy

https://vivaldi.com