Security and patch rollup for FPR30 from ESR78

[classilla]

Nothing yet.

[classilla]

M1368015 https://hg.mozilla.org/releases/mozilla-esr78/rev/24bce7b71db463425baafdb11f5f82f88a2c9bd0
M1666072 https://hg.mozilla.org/releases/mozilla-esr78/rev/eda9c77d3a54028090810ee8aeea2f08c416d6e8 (to captivedetect.js)
M1674735 https://hg.mozilla.org/releases/mozilla-esr78/rev/50f9a90291467c9eb9ba4d3797cf2e2657365a81 (and pull up other port numbers except maybe IRC) and M1677047 https://hg.mozilla.org/releases/mozilla-esr78/rev/7bf70308594c9e45ffb289dfa568bdafcd9be7c7
M1678413 https://hg.mozilla.org/releases/mozilla-esr78/rev/95dacfb8daf33f1769058ac36997ea2b8dc94e60 (mListener only)

Also update tzdata.

[classilla]

Not a security patch, but is nice: https://hg.mozilla.org/releases/mozilla-esr78/rev/324b0f377893
Okay to use mCharacterMap->test(aCh); because we know all CMAPs must already have been initialized.

[classilla]

M1683964 https://hg.mozilla.org/releases/mozilla-esr78/rev/4158db020f68 https://hg.mozilla.org/releases/mozilla-esr78/rev/a3ea1c463e0e https://hg.mozilla.org/releases/mozilla-esr78/rev/df0581e37d87
M1685420 https://hg.mozilla.org/releases/mozilla-esr78/rev/b12df3a6f00f (XPConnect only)
M1683940 https://hg.mozilla.org/releases/mozilla-esr78/rev/fe1c27998c73 (to network.js)
M1677590 https://hg.mozilla.org/releases/mozilla-esr78/rev/925d02e4589c

[classilla]

Dropping M1685420, it was a belt-and-suspenders fix and it makes the browser crashy.

[classilla]

No more FPR30.