In T145806#2641892, @mmodell wrote:

I see scrollbars on the task graph and I am able to scroll horizontally to see the task names.

I'm using Firefox 48.0.1 on Linux

Is it just me, or I cannot still see it ? even on Firefox :\ Let me paste some screenshots
at the top

and at the bottom:

I'm thinking that it might be at least a bit more user-friendly to put the graph on the right side and the task titles on the left? :D

I can't reproduce the issue in Firefox or Chromium on my machine. I guess it's only an issue in older versions of Firefox.

I don't see scrollbars on FF 48.0.1 on Mac.

In T145806#2642596, @mmodell wrote:

I can't reproduce the issue in Firefox or Chromium on my machine. I guess it's only an issue in older versions of Firefox.

I can reproduce the issue in Firefox 48 (current stable) on Fedora 24 on https://phabricator.wikimedia.org/T107037 with a display width of 1440px.

If you resize your browser slightly (make it a bit narrower) does the scrollbar appear?

What I found is that there is a small range of widths where the scrollbar does not appear. If the browser is a bit wider, then the scrollbar isn't needed, if it's narrower then the scrollbar appears. The point where the content overflows just isn't quite aligned with the point where the scrollbar appears.

For me the scrollbar appears when my browser width is below 1277px but the content is somewhat cut off anywhere between ~1280px and ~1600px.

Sadly, even when the scrollbars are available, they barely reveal any of the task title:

I guess we should report this upstream...

Yeah, if I resize smaller I get the scrollbars. But then....

(what you show in your screenshot)

In T145806#2646062, @mmodell wrote:

I guess we should report this upstream...

yup

Upstreamed as https://secure.phabricator.com/T11676

As Evan pointed out in upstream (thanks!),

a workaround is to select Search → Search Subtasks in the panel, to get a result list of subtasks.

Should be fixed with the #phab-2016-09-28 update.

actually fixed with Phabricator (2016-10-05)

I confirm this is fixed; T146390: "Task graph" coloured lines easily push information out of visibility is not, though.