Unfortunately, I didn't see the plugin before despite that I fight with Chrome to get back the features lost with Opera (12) dropped support really many years already :))).
Also, when relying on some plugin to wrap the functionality of "continue where you left off" of a browser it is plugged to, one would expect reopening all "exactly as it was" when you closed the Chrome(ium) with the plugin (TO) save&close i-face button.
Having in the newly (re)opened TO session the tabs opened by Chrome/ium (in its own way, which is also random since Chrome/ium by default just opens tabs from the last closed window only, which, in turn, is random, as I have no idea which one was supposed to get closed the last when using TO i-face for "save&close") is slightly unexpected.
If the plugin cannot overcome/overwrite the Chrome/ium feature of opening what it wants in its preferred way, then it looks a bit like a plugin bug/drawback and should be noted in the help doc-s.
What I expect is "continue where you left off" would work relative to 'where I left off' in TO plugin (since I used TO i-face to leave ;)
Also, using additional trick (e.g. recommended <Alt>+double-click, which is not working, BTW, - ordinary dbl-click opens window with all tabs, and even unwanted unloaded) to open as it was when "saved&closed" with TO i-face looks a bit illogical as well. Some tricks are supposed to be required when you want opening it in the saved state but a bit different (modified way still), but not when you want it in the state "exactly as it was" when you closed ;)
This is not a reply, but just a side vote for the feature, just a bit extended.
The request (which I support) basically also refers to the topic that I found orphaned ~4 years ago (http://tabsoutliner.userecho.com/topics/87-why-if-i-close-chrome-and-reopen-all-tabs-that-were-open-regardless-of-where-they-are-in-the-notes/)
(This one looks like also relevant: http://tabsoutliner.userecho.com/topics/219-is-there-a-way-to-simulate-continue-where-you-left-off-function/)
Unfortunately, I didn't see the plugin before despite that I fight with Chrome to get back the features lost with Opera (12) dropped support really many years already :))).
Also, when relying on some plugin to wrap the functionality of "continue where you left off" of a browser it is plugged to, one would expect reopening all "exactly as it was" when you closed the Chrome(ium) with the plugin (TO) save&close i-face button.
Having in the newly (re)opened TO session the tabs opened by Chrome/ium (in its own way, which is also random since Chrome/ium by default just opens tabs from the last closed window only, which, in turn, is random, as I have no idea which one was supposed to get closed the last when using TO i-face for "save&close") is slightly unexpected.
If the plugin cannot overcome/overwrite the Chrome/ium feature of opening what it wants in its preferred way, then it looks a bit like a plugin bug/drawback and should be noted in the help doc-s.
What I expect is "continue where you left off" would work relative to 'where I left off' in TO plugin (since I used TO i-face to leave ;)
Also, using additional trick (e.g. recommended <Alt>+double-click, which is not working, BTW, - ordinary dbl-click opens window with all tabs, and even unwanted unloaded) to open as it was when "saved&closed" with TO i-face looks a bit illogical as well. Some tricks are supposed to be required when you want opening it in the saved state but a bit different (modified way still), but not when you want it in the state "exactly as it was" when you closed ;)
Good luck.
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