Uh oh! I too thought we had longer. If they removed XUL and XPCOM from FF 45.0 then that IS
the end of using IHG with FF.
I'm not going to install 45.0 myself to see. Anyway I'm on the ESR release cycle and I'm just going to stop for a while on the last ESR that works. (ESR = extended support releases, intended for corporate IT departments with fleets of 1,000 or 10,000 computers to upgrade, and ESR never changes any features, just bug and security fixes.)
See this page, particularly the diagram showing the parallels between ESR and standard. My guess is that ESR 38.8.0 is end of the line for FF ESR support of IHG. I can't tell for sure but I don't think they'll rip out XUL and XPCOM from ESR 38. ESR 45.0 and later will probably have the components ripped. In different words, they are letting IT departments two months to get with the program. Understand that some big IT departments write their own applications, even add-ons, for corporate use, and they rely on not having to deal with new fixes every month, unlike ordinary people. That's why I switched to ESR, because I didn't like my browser morphing every month.
To be blunt, I haven't seen a single thing added to FF in years that I gave a rat's ass about. Mozilla has the same problem as Microsoft: feature bloat. The engineer saying is, "It's not broke. Let's fix it!"
Many agree with my opinion that Windows 2000 was the epitome of Windows and it's been downhill ever since. I'm running Win7 and I've fixed most of its quirks and made it look and feel almost like Win2k.
There is no way in hell that I'm moving up (up???) to any later Windows. I'd rather learn to love Linux (Debian) which I already have installed on my (little used) desktop. There are things I do with Windows that will have to be completely change, but with the alternative of MSFT always bloating and morphing Windows, Linux looks like a good bet. At least Debian doesn't morph on you, although admittedly it's quite plain. (Gnome desktop.) I started with DOS and then Win3.1, so I've got plenty of years spent learning Windows. Every release was better and better. When MSFT merged NT into the mainstream Windows (thus adding the vastly superior NTFS file system) was the major event, the last BIG improvement. Win2k was the last great operating system they ever made. I don't know WTH with WinXP, sort of a fizzle where they just scrambled the look and needed tweaking to get back to looking like Win2k. Every OS they've released after has been a disaster for picky users. I guess the end goal is to make your PC into a big cellphone. Have your cellphone, fablet, tablet, laptop, desktop and big screen TV all look the same. Oh Jesus! I hope they don't start putting Windows on TV sets!
It is understandable in financial terms why Microsoft does this to Windows (and MS Office) is because they derive their income from selling NEW products, so they have to morph Windows and Office in order to survive. But I'm clueless why Mozilla does things like ripping XUL and XPCOM out of Firefox. It's not exactly like Mozilla has a profit line, although people work for Mozilla and they'd be out of jobs if Firefox went to just fixing bugs and vulns. That's why non-profit organizations exist, to provide jobs for their employees, especially the fat cats at the top.
I guess I'll mourn the last good Firefox the same way I mourn Win2k. All good things must end some day. In the distant future our sun (a yellow dwarf) will run out of its main fuel hydrogen (which it fusions into helium) and it will begin expanding until its size will exceed the Earth's orbit and our planet will become a crispy critter. Unless we invent star travel before then we humans will become extinct. Actually I'm a bit of a pessimist, and my best guess is we will do ourselves in before we even manage to colonize other planets in our own solar system. I'm not religious, don't believe in the End of Days, but I think we are on the edge of it in the Middle East with several unstable nuclear states, and I think it is more than likely that the ME will erupt into a nuclear WW III in the not too distant future. All it takes is one crazy person to get access to one nuke. They have plenty of crazy people, they have a sizable stash of nukes. Only reason the war hasn't already started is because so far the crazies have been kept away from nukes.
Well. From "my FF doesn't work" to "the sun is going to eat the Earth" to WW III in the Middle East, I've covered quite a lot in this post. Perhaps after reading my rant you may feel a little bit better about your IHG not working on your latest FF.
At some point we are all going to have to switch to Pale Moon or another FF fork that doesn't have the essential components removed. We have known this for more than a year. Maybe the day has arrived.
There are several forks of Firefox, Pale Moon being one of them, and I suspect most will elect to not make a major change like ripping out XUL and XPCOM. The smaller projects don't have the resources for such a big change, so they are likely to remain compatible with IHG for as long as they exist.
Just remember, if Firefox doesn't get us maybe WW III in the ME will, and if not that we know for sure that the sun will eventually engulf the Earth in flames and there won't be any more images to rip.
Afterthought: I didn't even mention there may be an asteroid with Earth's name on it headed this way right now, on a collision course with Earth in a few years, a few decades, a few thousand years. Scientists know that it is coming, nobody knows how big or when it's going to hit. The last biggie killed the dinosaurs. ... Oops. I just mentioned it!
Tell me you feel better about losing Firefox after reading all the gloom and doom in my post.