I'm using Firefox 52.9.0 ESR.  When I scroll down a page that has photos and 
or graphics, at some point one will stretch and turn into long vertical 
lines.  Chunks of text will disappear also and if I go past this section and 
try to slowly scroll upwards, I can get back some of the text but not all of 
it.  I might also get back part of a photo but at some point in scrolling up 
into the photo, it will disappear or stretch.

I haven't used Firefox for a while and don't have this problem with other 
browsers (Palemoon, Newmoon, Chrome, Firefox 47 on a different profile, Tor 
based on FF 52.9.0).  It seems to have started when I installed this newer 
Firefox 52.9.0 ESR which I'm running on it's own profile.  I just tried 
running Firefox 52.9.0 ESR on the profile I use with FF51, and the problem 
wasn't there.

Can someone suggest where I can look to fix this problem?  What 
specifically, in the profile(?), could make this type of problem occur? 

On 12-7-2018 3:00, jbclem wrote:
> I'm using Firefox 52.9.0 ESR.  When I scroll down a page that has photos and
> or graphics, at some point one will stretch and turn into long vertical
> lines.  Chunks of text will disappear also and if I go past this section and
> try to slowly scroll upwards, I can get back some of the text but not all of
> it.  I might also get back part of a photo but at some point in scrolling up
> into the photo, it will disappear or stretch.
>
> I haven't used Firefox for a while and don't have this problem with other
> browsers (Palemoon, Newmoon, Chrome, Firefox 47 on a different profile, Tor
> based on FF 52.9.0).  It seems to have started when I installed this newer
> Firefox 52.9.0 ESR which I'm running on it's own profile.  I just tried
> running Firefox 52.9.0 ESR on the profile I use with FF51, and the problem
> wasn't there.
>
> Can someone suggest where I can look to fix this problem?  What
> specifically, in the profile(?), could make this type of problem occur?
>
>
Maybe using hardware acceleration?

"jbclem" <jbclem4@charter.net> Wrote in message:
> I'm using Firefox 52.9.0 ESR.  When I scroll down a page that has photos and 
> or graphics, at some point one will stretch and turn into long vertical 
> lines.  Chunks of text will disappear also and if I go past this section and 
> try to slowly scroll upwards, I can get back some of the text but not all of 
> it.  I might also get back part of a photo but at some point in scrolling up 
> into the photo, it will disappear or stretch.
> 
> I haven't used Firefox for a while and don't have this problem with other 
> browsers (Palemoon, Newmoon, Chrome, Firefox 47 on a different profile, Tor 
> based on FF 52.9.0).  It seems to have started when I installed this newer 
> Firefox 52.9.0 ESR which I'm running on it's own profile.  I just tried 
> running Firefox 52.9.0 ESR on the profile I use with FF51, and the problem 
> wasn't there.
> 
> Can someone suggest where I can look to fix this problem?  What 
> specifically, in the profile(?), could make this type of problem occur? 
> 
You may be seeing what APZ was designed to core:
<https://hacks.mozilla.org/2017/11/async-panzoom-apz-lands-in-fire
fox-quantum/>

Look in about:troubleshooting and see if hardware acceleration, or
 other graphics parameters, differ between the two
 versions/profiles.
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