on my end, Win7, FF 99 is extremely slow to start up - compared to FF 98 & earlier

Safe Mode is faster, but it's hard to say if it might be "pre-loading" or not ? because even though you supply a -safe-mode command line switch, it STILL prompts you with a dialog box with an Open button before FF actually loads. (now isn't that smart)

disabling hardware acceleration makes no difference

therube wrong channel :)

yeah, i know. just babbling...

therube With webrender they are now running into probably every driver issue which exists so make sure you have the latest drivers.

I also think I saw a new Intel block for HD 3000 or earlier but that was for 8.1 if I am not mistaken.

gfx.webrender.all, true or false, makes no difference.

this contraption here has Intel HD 4000 (& or, maybe, not sure, AMD HD 7650A)

about:support indicates its using hd4000

therube was for 100 not 99: Bug 1761332

Bug 1760464 and also 8 not 7

frg_Away: nightly (101a) loads fine. suggestion as to what i might tweak for 99 ?

fission.autostart;false did not help.

therube I do not have a recent Firefox installed. Only version from our 2.53 tree for a/b testing. Sorry can't help. That was the only bug I noticed.

oops. i was wrong (or it changed). FF nightly too is slow to start up.

media.gmp-gmpopenh264 got "installed" between "then" & now.

no difference.

therube well I rather turn the "helpful" new features off which now pop up with every new version of CrEdge. At least I know this one is crap but at least it works with incompatible sites.

therube I also saw an awful lot of patches for pushing advertizing stuff to raise money and experiments. Didn't look a the details. Check if some system add-ons or other stuff gobbles up network bandwidth at start to populate the newtab crap.

yeah, i believe i turned all that crap off, from the get-go (using new profiles all around)

Bill did an early 2.53.13b1 pre build today so if you have a website which is broken because of the missing nullish coalesce operator support (??) in earlier versions please test.

builds are at ftp.mozilla.org/pub/seamonkey/nightly like it says in the topic.