G'day paulderdash - You may want to consider that what Adguard is doing is actually a MITM attack, and as such is introducing a security hole in your system. Avast--and almost all security software--is also doing it now.
The Adguard Certificate will actually replace whatever Site Certificate is supposed to be presented to your browser. Read Security Week
for more detail.
FWIW, I and many others disabled Avast WebShield for this reason, and I'm sure--with no research to back it up--that users of other AV systems have done the same. IMHO, no security system needs to fiddle with TLS which is our prime protection against MITM.
EDIT: Add reference.
Gigabyte H61M-USB3-B3 r2.0, I5-2400 3.10GHz, 4GB RAM; W7HPx64 SP1, Lotus SmartSuite 9.8, K-Meleon 76RC, Pale Moon 26.4.1, IE11, Clyton email 17.0, Foxit Reader 22.214.171.1246, PaintShop Pro 6.02, SuRun 126.96.36.199, VoodooShield 14.8
Television is the first truly democratic culture -- the first culture available to everyone and entirely governed by what the people want. The most terrifying thing is what people do want. [Clive Barnes, 1969]
Edited 2 time(s). Last edit at 04/04/2017 11:34AM by gordon451.