not sure yet, but some presets definitely not OK Rated 3 out of 5 stars
I'll give it a tentative semi-positive assessment. First, to echo the warning posted months ago by RevSyd: the "strongest" preset configuration that exhibited no problems was the one called Courteous. Beyond that I instantaneously got squawks from Gmail (connectivity problems, Google whined) and - ironically - the Firefox Add-Ons website (it would not load at all). Unacceptable, to say the least.
On the other hand, set to its Courteous configuration, I *think* it causes faster page loads and, so far at least, no complaints. Hard to say, because load times for a particular page will vary anyway.
To be fair and complete: I have seen similar counterproductive things occur in the past as well, with other add-ons of similar purpose installed in the Firefox version of the time.
Hi, Are you able to post some more relevant info? I think this issues can be specific to your ISP, as others don't encounter same problems. Any additional info is welcomed on firstname.lastname@example.org . Thanks