Firefox Health Report Vital Stats shows bookmarks 14, but Raw Data shows bookmarks 7917. How can I make Firefox Health Report Vital Stats show bookmarks 7917?

Question

All data in the about:healthreport Firefox Health Report page is accurate except for the persistently inaccurate bookmarks count in the Vital Stats section of the page, which counts only 14 bookmarks and fails to count the other 7903 bookmarks.
The about:healthreport Firefox Health Report Vital Stats section shows bookmarks 14.
The about:healthreport Firefox Health Report Raw Data page shows bookmarks 7917.
The Firefox/Bookmarks/Show All Bookmarks/Library window shows 7910 items.
How can I make the about:healthreport Firefox Health Report Vital Stats section correctly and accurately show "bookmarks 7917" instead of incorrectly and erroneously showing "bookmarks 14"?
Platform: FF 36.0.4, Mac OS X 10.8.5
Platform: FF 31.5.2 ESR, Mac OS X 10.8.5
The following steps reveal the issue:
(1) In the Firefox Navigation Bar, type "about:healthreport" (without the quotation marks) to open the Firefox Health Report page.
(2) On the left side of the Firefox Health Report page, in the Vital Stats section, the following data appears: bookmarks 14. This is false data because the browser actually has 7917 bookmarks, not 14 bookmarks. All other data in the Firefox Health Report page is accurate.
(3) In the Firefox Health Report page, click the Raw Data link to reveal all Raw Data.
(4) Page Down approximately 10 pages to the following specific Raw Data:
"2015-03-22": {
"org.mozilla.addons.counts": {
"_v": 2,
"extension": 28,
"plugin": 6,
"theme": 1
"org.mozilla.healthreport.submissions": {
"_v": 2,
"continuationUploadAttempt": 1,
"firstDocumentUploadAttempt": 1,
"uploadSuccess": 1,
"uploadTransportFailure": 1
"org.mozilla.places.places": {
"_v": 1,
"bookmarks": 7917,
"pages": 4293
5) The preceding Raw Data correctly indicates the following data: "bookmarks": 7917,
6) Open the Firefox/Bookmarks/Show All Bookmarks/Library window.
7) In the Library window sidebar, select the entry "All Bookmarks".
8) In the Library window Search Bookmarks search bar, type the colon punctuation mark " : " (without the quotation marks) to reveal the entire list of all items (bookmarks) in the Library window.
9) In the Library window, select any one of the items (bookmarks) in the list of items.
10) Press the <command> <A> keys to select and highlight automatically all items in the items (bookmarks) list, and Firefox automatically will begin the process of counting all items (bookmarks) in the items list.
11) After a counting interval of several seconds, the count of the total number of items (bookmarks) that are present in the items list appears near the bottom-center of the Library window: 7910 items.
12) I installed the "Places Maintenance" add-on, selected the "All" preference, and executed the add-on, but it did not correct the issue.
13) The about:healthreport Firefox Health Report Vital Stats section counts only 14 bookmarks and fails to count the remaining 7903 bookmarks.
Note --
On the support.mozilla.org/en-US/questions site, after selecting ASK A QUESTION and writing this question, I attempted to upload image files with the question, but I am unable to upload a JPG (97 KB) image file or a PNG (307 KB) image file because the "Add Images Browse" function appears to be broken.
Each time I click the "Add images: Browse" button, select one of the image files, and click "Open" to upload the image file, a spinning gear appears in a square beneath "Uploaded images:", and the spinning gear continues to spin without stopping. The image file does not upload.
While the gear is spinning, the message "Uploading <filename>.jpg" or "Uploading <filename>.png" remains constantly visible beneath the square that contains the spinning gear.
I think the gear would have continued to spin for eternity if I had not reloaded the page after the gear had been spinning for a full 7 minutes.
The image files would not upload.

Answer 1

It could be the work of one of your add-ons.
Type '''about:addons'''<enter> in the address bar to open your Add-ons Manager.
Hot key; '''<Control>''(Mac:<Command>)''<Shift> A)'''
In the Add-ons Manager, on the left, select '''Extensions.'''
Disable a few add-ons, then '''Restart Firefox.'''
Some added toolbar and anti-virus add-ons are known to cause
Firefox issues. '''Disable All of them.'''
If the problem continues, disable some more (restarting FF). Continue until
the problem is gone. After, you know what group is causing the issue.
Re-enable the last group '''ONE AT A TIME''' (restarting FF) until the problem returns.
Once you think you found the problem, disable that and re-enable all the
others, then restart again. Let us know who the suspect is detective.